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@@ -1,3159 +0,0 @@
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-//! \file nanodbc.cpp Implementation details.
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-#ifndef DOXYGEN
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-
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-#include "nanodbc.h"
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-
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-#include <algorithm>
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-#include <cassert>
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-#include <clocale>
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-#include <codecvt>
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-#include <cstdint>
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-#include <cstdio>
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-#include <cstring>
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-#include <ctime>
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-#include <iomanip>
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-#include <map>
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-#include <sstream>
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-
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-#if defined(_MSC_VER) && _MSC_VER <= 1800
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- // silence spurious Visual C++ warnings
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- #pragma warning(disable:4244) // warning about integer conversion issues.
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- #pragma warning(disable:4312) // warning about 64-bit portability issues.
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- #pragma warning(disable:4996) // warning about snprintf() deprecated.
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-#endif
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-
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-#ifdef __APPLE__
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- // silence spurious OS X deprecation warnings
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- #define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_6
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-#endif
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-
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-#ifdef _WIN32
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- // needs to be included above sql.h for windows
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- #define NOMINMAX
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- #include <windows.h>
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-#endif
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-
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-#include <sql.h>
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-#include <sqlext.h>
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-
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-///////////////////////////////////////////////////////////////////////////////////////////////////
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-// Unicode Support
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-///////////////////////////////////////////////////////////////////////////////////////////////////
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-#if defined(_MSC_VER)
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- #ifdef NANODBC_USE_UNICODE
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- #define NANODBC_TEXT(s) L ## s
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- #define NANODBC_SNPRINTF std::swprintf
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- #define NANODBC_STRFTIME std::wcsftime
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- #define NANODBC_STRLEN std::wcslen
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- #define NANADBC_STRNCMP std::wcsncmp
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- #define NANODBC_UNICODE(f) f ## W
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- #define NANODBC_SQLCHAR SQLWCHAR
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- #else
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- #define NANODBC_TEXT(s) s
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- #define NANODBC_SNPRINTF _snprintf
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- #define NANODBC_STRFTIME std::strftime
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- #define NANODBC_STRLEN std::strlen
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- #define NANADBC_STRNCMP std::strncmp
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- #define NANODBC_UNICODE(f) f
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- #define NANODBC_SQLCHAR SQLCHAR
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- #endif
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-#else
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- #ifdef NANODBC_USE_UNICODE
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- #define NANODBC_TEXT(s) L ## s
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- #define NANODBC_SNPRINTF std::swprintf
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- #define NANODBC_STRFTIME std::wcsftime
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- #define NANODBC_STRLEN std::wcslen
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- #define NANADBC_STRNCMP std::wcsncmp
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- #define NANODBC_UNICODE(f) f ## W
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- #define NANODBC_SQLCHAR SQLWCHAR
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- #else
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- #define NANODBC_TEXT(s) s
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- #define NANODBC_SNPRINTF std::snprintf
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- #define NANODBC_STRFTIME std::strftime
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- #define NANODBC_STRLEN std::strlen
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- #define NANADBC_STRNCMP std::strncmp
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- #define NANODBC_UNICODE(f) f
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- #define NANODBC_SQLCHAR SQLCHAR
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- #endif
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-#endif
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-
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-///////////////////////////////////////////////////////////////////////////////////////////////////
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-// ODBC API Interface
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-///////////////////////////////////////////////////////////////////////////////////////////////////
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-#define NANODBC_STRINGIZE_I(text) #text
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-#define NANODBC_STRINGIZE(text) NANODBC_STRINGIZE_I(text)
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-
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-// By making all calls to ODBC functions through this macro, we can easily get
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-// runtime debugging information of which ODBC functions are being called,
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-// in what order, and with what parameters by defining NANODBC_ODBC_API_DEBUG.
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-#ifdef NANODBC_ODBC_API_DEBUG
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- #include <iostream>
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- #define NANODBC_CALL_RC(FUNC, RC, ...) \
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- do \
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- { \
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- std::cerr << __FILE__ ":" NANODBC_STRINGIZE(__LINE__) " " \
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- NANODBC_STRINGIZE(FUNC) "(" #__VA_ARGS__ ")" << std::endl; \
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- RC = FUNC(__VA_ARGS__); \
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- } while(false) \
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- /**/
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- #define NANODBC_CALL(FUNC, ...) \
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- do \
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- { \
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- std::cerr << __FILE__ ":" NANODBC_STRINGIZE(__LINE__) " " \
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- NANODBC_STRINGIZE(FUNC) "(" #__VA_ARGS__ ")" << std::endl; \
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- FUNC(__VA_ARGS__); \
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- } while(false) \
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- /**/
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-#else
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- #define NANODBC_CALL_RC(FUNC, RC, ...) RC = FUNC(__VA_ARGS__)
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- #define NANODBC_CALL(FUNC, ...) FUNC(__VA_ARGS__)
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-#endif
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-
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-///////////////////////////////////////////////////////////////////////////////////////////////////
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-// Error and Exception Handling
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-///////////////////////////////////////////////////////////////////////////////////////////////////
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-
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-namespace
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-{
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- #ifdef NANODBC_ODBC_API_DEBUG
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- inline nanodbc::string_type return_code(RETCODE rc)
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- {
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- switch(rc)
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- {
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- case SQL_SUCCESS: return NANODBC_UNICODE("SQL_SUCCESS");
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- case SQL_SUCCESS_WITH_INFO: return NANODBC_UNICODE("SQL_SUCCESS_WITH_INFO");
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- case SQL_ERROR: return NANODBC_UNICODE("SQL_ERROR");
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- case SQL_INVALID_HANDLE: return NANODBC_UNICODE("SQL_INVALID_HANDLE");
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- case SQL_NO_DATA: return NANODBC_UNICODE("SQL_NO_DATA");
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- case SQL_NEED_DATA: return NANODBC_UNICODE("SQL_NEED_DATA");
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- case SQL_STILL_EXECUTING: return NANODBC_UNICODE("SQL_STILL_EXECUTING");
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- }
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- assert(0);
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- return "unknown"; // should never make it here
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- }
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- #endif
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-
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- // Easy way to check if a return code signifies success.
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- inline bool success(RETCODE rc)
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- {
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- #ifdef NANODBC_ODBC_API_DEBUG
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- std::cerr << "<-- rc: " << return_code(rc) << " | ";
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- #endif
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- return rc == SQL_SUCCESS || rc == SQL_SUCCESS_WITH_INFO;
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- }
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-
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- // Returns the array size.
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- template<typename T, std::size_t N>
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- inline std::size_t arrlen(T(&)[N])
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- {
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- return N;
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- }
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-
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- // Operates like strlen() on a character array.
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- template<typename T, std::size_t N>
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- inline std::size_t strarrlen(T(&a)[N])
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- {
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- const T* s = &a[0];
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- std::size_t i = 0;
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- while(*s++ && i < N) i++;
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- return i;
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- }
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-
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- inline void convert(const std::wstring& in, std::string& out)
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- {
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- std::wstring_convert<std::codecvt_utf8<wchar_t>> conv;
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- out = conv.to_bytes(in);
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- }
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-
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- #ifdef NANODBC_USE_UNICODE
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- inline void convert(const std::string& in, std::wstring& out)
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- {
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- std::wstring_convert<std::codecvt_utf8<wchar_t>> conv;
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- out = conv.from_bytes(in);
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- }
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-
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- inline void convert(const std::wstring& in, std::wstring & out)
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- {
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- out = in;
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- }
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- #else
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- inline void convert(const std::string& in, std::string& out)
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- {
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- out = in;
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- }
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- #endif
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-
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- // Attempts to get the most recent ODBC error as a string.
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- // Always returns std::string, even in unicode mode.
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- inline std::string recent_error(SQLHANDLE handle, SQLSMALLINT handle_type)
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- {
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- nanodbc::string_type result;
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- std::string rvalue;
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- std::vector<NANODBC_SQLCHAR> sql_message(SQL_MAX_MESSAGE_LENGTH);
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- sql_message[0] = '\0';
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-
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- SQLINTEGER i = 1;
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- SQLINTEGER native_error = 0;
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- SQLSMALLINT total_bytes;
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- NANODBC_SQLCHAR sql_state[6];
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- RETCODE rc;
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-
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- do
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- {
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- NANODBC_CALL_RC(
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- NANODBC_UNICODE(SQLGetDiagRec)
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- , rc
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- , handle_type
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- , handle
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- , i
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- , sql_state
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- , &native_error
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- , 0
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- , 0
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- , &total_bytes);
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-
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- if(success(rc) && total_bytes > 0)
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- sql_message.resize(total_bytes + 1);
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-
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- NANODBC_CALL_RC(
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- NANODBC_UNICODE(SQLGetDiagRec)
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- , rc
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- , handle_type
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- , handle
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- , i
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- , sql_state
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- , &native_error
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- , sql_message.data()
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- , (SQLSMALLINT)sql_message.size()
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- , &total_bytes);
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-
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- if(!success(rc))
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- {
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- convert(result, rvalue);
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- return rvalue;
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- }
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-
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- if(!result.empty())
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- result += ' ';
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-
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- result += nanodbc::string_type(sql_message.begin(), sql_message.end());
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- i++;
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- } while(rc != SQL_NO_DATA);
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-
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- convert(result, rvalue);
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- std::string status(&sql_state[0], &sql_state[arrlen(sql_state)]);
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- status += ": ";
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- status += rvalue;
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-
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- // some drivers insert \0 into error messages for unknown reasons
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- using std::replace;
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- replace(status.begin(), status.end(), '\0', ' ');
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-
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- return status;
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- }
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-} // namespace
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-
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-namespace nanodbc
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-{
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- type_incompatible_error::type_incompatible_error()
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- : std::runtime_error("type incompatible") { }
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-
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- const char* type_incompatible_error::what() const noexcept
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- {
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- return std::runtime_error::what();
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- }
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-
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- null_access_error::null_access_error()
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- : std::runtime_error("null access") { }
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-
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- const char* null_access_error::what() const noexcept
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- {
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- return std::runtime_error::what();
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- }
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-
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- index_range_error::index_range_error()
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- : std::runtime_error("index out of range") { }
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-
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- const char* index_range_error::what() const noexcept
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- {
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- return std::runtime_error::what();
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- }
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-
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- programming_error::programming_error(const std::string& info)
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- : std::runtime_error(info.c_str()) { }
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-
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- const char* programming_error::what() const noexcept
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- {
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- return std::runtime_error::what();
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- }
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-
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- database_error::database_error(void* handle, short handle_type, const std::string& info)
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- : std::runtime_error(info + recent_error(handle, handle_type)) { }
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-
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- const char* database_error::what() const noexcept
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- {
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- return std::runtime_error::what();
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- }
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-} // namespace nanodbc
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-
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-// Throwing exceptions using NANODBC_THROW_DATABASE_ERROR enables file name
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-// and line numbers to be inserted into the error message. Useful for debugging.
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-#define NANODBC_THROW_DATABASE_ERROR(handle, handle_type) \
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- throw nanodbc::database_error( \
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- handle \
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- , handle_type \
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- , __FILE__ ":" NANODBC_STRINGIZE(__LINE__) ": ") \
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- /**/
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-
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-///////////////////////////////////////////////////////////////////////////////////////////////////
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-// Implementation Details
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-///////////////////////////////////////////////////////////////////////////////////////////////////
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-
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-namespace
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-{
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- using namespace std; // if int64_t is in std namespace (in c++11)
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-
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- // A utility for calculating the ctype from the given type T.
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- // I essentially create a lookup table based on the MSDN ODBC documentation.
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- // See http://msdn.microsoft.com/en-us/library/windows/desktop/ms714556(v=vs.85).aspx
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- template<class T>
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- struct sql_ctype { };
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-
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- template<>
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- struct sql_ctype<nanodbc::string_type::value_type>
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- {
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- #ifdef NANODBC_USE_UNICODE
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- static const SQLSMALLINT value = SQL_C_WCHAR;
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- #else
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- static const SQLSMALLINT value = SQL_C_CHAR;
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- #endif
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- };
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-
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- template<>
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- struct sql_ctype<short>
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- {
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- static const SQLSMALLINT value = SQL_C_SSHORT;
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- };
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-
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- template<>
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- struct sql_ctype<unsigned short>
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- {
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- static const SQLSMALLINT value = SQL_C_USHORT;
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- };
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-
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- template<>
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- struct sql_ctype<int32_t>
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- {
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- static const SQLSMALLINT value = SQL_C_SLONG;
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- };
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-
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- template<>
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- struct sql_ctype<uint32_t>
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- {
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- static const SQLSMALLINT value = SQL_C_ULONG;
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- };
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-
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- template<>
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- struct sql_ctype<int64_t>
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- {
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- static const SQLSMALLINT value = SQL_C_SBIGINT;
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- };
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-
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- template<>
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- struct sql_ctype<uint64_t>
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- {
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- static const SQLSMALLINT value = SQL_C_UBIGINT;
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- };
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-
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- template<>
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- struct sql_ctype<float>
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- {
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- static const SQLSMALLINT value = SQL_C_FLOAT;
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- };
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-
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- template<>
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- struct sql_ctype<double>
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- {
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- static const SQLSMALLINT value = SQL_C_DOUBLE;
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- };
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-
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- template<>
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- struct sql_ctype<nanodbc::string_type>
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- {
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- #ifdef NANODBC_USE_UNICODE
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- static const SQLSMALLINT value = SQL_C_WCHAR;
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- #else
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- static const SQLSMALLINT value = SQL_C_CHAR;
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- #endif
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- };
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-
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- template<>
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- struct sql_ctype<nanodbc::date>
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- {
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- static const SQLSMALLINT value = SQL_C_DATE;
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- };
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-
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- template<>
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- struct sql_ctype<nanodbc::timestamp>
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- {
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- static const SQLSMALLINT value = SQL_C_TIMESTAMP;
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- };
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-
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- // Encapsulates resources needed for column binding.
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- class bound_column
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- {
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- public:
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- bound_column(const bound_column& rhs) =delete;
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- bound_column& operator=(bound_column rhs) =delete;
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-
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- bound_column()
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- : name_()
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- , column_(0)
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- , sqltype_(0)
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- , sqlsize_(0)
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- , scale_(0)
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- , ctype_(0)
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- , clen_(0)
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- , blob_(false)
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- , rowset_size_(0)
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- , cbdata_(0)
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- , pdata_(0)
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- {
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-
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- }
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-
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|
- ~bound_column()
|
|
|
- {
|
|
|
- delete[] cbdata_;
|
|
|
- delete[] pdata_;
|
|
|
- }
|
|
|
-
|
|
|
- public:
|
|
|
- nanodbc::string_type name_;
|
|
|
- short column_;
|
|
|
- SQLSMALLINT sqltype_;
|
|
|
- SQLULEN sqlsize_;
|
|
|
- SQLSMALLINT scale_;
|
|
|
- SQLSMALLINT ctype_;
|
|
|
- SQLULEN clen_;
|
|
|
- bool blob_;
|
|
|
- long rowset_size_;
|
|
|
- nanodbc::null_type* cbdata_;
|
|
|
- char* pdata_;
|
|
|
- };
|
|
|
-
|
|
|
- // Allocates the native ODBC handles.
|
|
|
- inline void allocate_handle(SQLHENV& env, SQLHDBC& conn)
|
|
|
- {
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLAllocHandle
|
|
|
- , rc
|
|
|
- , SQL_HANDLE_ENV
|
|
|
- , SQL_NULL_HANDLE
|
|
|
- , &env);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(env, SQL_HANDLE_ENV);
|
|
|
-
|
|
|
- try
|
|
|
- {
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLSetEnvAttr
|
|
|
- , rc
|
|
|
- , env
|
|
|
- , SQL_ATTR_ODBC_VERSION
|
|
|
- , (SQLPOINTER)SQL_OV_ODBC3
|
|
|
- , SQL_IS_UINTEGER);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(env, SQL_HANDLE_ENV);
|
|
|
-
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLAllocHandle
|
|
|
- , rc
|
|
|
- , SQL_HANDLE_DBC
|
|
|
- , env
|
|
|
- , &conn);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(env, SQL_HANDLE_ENV);
|
|
|
- }
|
|
|
- catch(...)
|
|
|
- {
|
|
|
- NANODBC_CALL(
|
|
|
- SQLFreeHandle
|
|
|
- , SQL_HANDLE_ENV
|
|
|
- , env);
|
|
|
- throw;
|
|
|
- }
|
|
|
- }
|
|
|
-} // namespace
|
|
|
-
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-// Private Implementation: connection
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-
|
|
|
-namespace nanodbc
|
|
|
-{
|
|
|
-
|
|
|
-class connection::connection_impl
|
|
|
-{
|
|
|
-public:
|
|
|
- connection_impl(const connection_impl&) =delete;
|
|
|
- connection_impl& operator=(const connection_impl&) =delete;
|
|
|
-
|
|
|
- connection_impl()
|
|
|
- : env_(0)
|
|
|
- , conn_(0)
|
|
|
- , connected_(false)
|
|
|
- , transactions_(0)
|
|
|
- , rollback_(false)
|
|
|
- {
|
|
|
- allocate_handle(env_, conn_);
|
|
|
- }
|
|
|
-
|
|
|
- connection_impl(
|
|
|
- const string_type& dsn
|
|
|
- , const string_type& user
|
|
|
- , const string_type& pass
|
|
|
- , long timeout)
|
|
|
- : env_(0)
|
|
|
- , conn_(0)
|
|
|
- , connected_(false)
|
|
|
- , transactions_(0)
|
|
|
- , rollback_(false)
|
|
|
- {
|
|
|
- allocate_handle(env_, conn_);
|
|
|
- try
|
|
|
- {
|
|
|
- connect(dsn, user, pass, timeout);
|
|
|
- }
|
|
|
- catch(...)
|
|
|
- {
|
|
|
- NANODBC_CALL(
|
|
|
- SQLFreeHandle
|
|
|
- , SQL_HANDLE_DBC
|
|
|
- , conn_);
|
|
|
- NANODBC_CALL(
|
|
|
- SQLFreeHandle
|
|
|
- , SQL_HANDLE_ENV
|
|
|
- , env_);
|
|
|
- throw;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- connection_impl(const string_type& connection_string, long timeout)
|
|
|
- : env_(0)
|
|
|
- , conn_(0)
|
|
|
- , connected_(false)
|
|
|
- , transactions_(0)
|
|
|
- , rollback_(false)
|
|
|
- {
|
|
|
- allocate_handle(env_, conn_);
|
|
|
- try
|
|
|
- {
|
|
|
- connect(connection_string, timeout);
|
|
|
- }
|
|
|
- catch(...)
|
|
|
- {
|
|
|
- NANODBC_CALL(
|
|
|
- SQLFreeHandle
|
|
|
- , SQL_HANDLE_DBC
|
|
|
- , conn_);
|
|
|
- NANODBC_CALL(
|
|
|
- SQLFreeHandle
|
|
|
- , SQL_HANDLE_ENV
|
|
|
- , env_);
|
|
|
- throw;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- ~connection_impl() noexcept
|
|
|
- {
|
|
|
- try
|
|
|
- {
|
|
|
- disconnect();
|
|
|
- }
|
|
|
- catch(...)
|
|
|
- {
|
|
|
- // ignore exceptions thrown during disconnect
|
|
|
- }
|
|
|
- NANODBC_CALL(
|
|
|
- SQLFreeHandle
|
|
|
- , SQL_HANDLE_DBC
|
|
|
- , conn_);
|
|
|
- NANODBC_CALL(
|
|
|
- SQLFreeHandle
|
|
|
- , SQL_HANDLE_ENV
|
|
|
- , env_);
|
|
|
- }
|
|
|
-
|
|
|
- void connect(
|
|
|
- const string_type& dsn
|
|
|
- , const string_type& user
|
|
|
- , const string_type& pass
|
|
|
- , long timeout)
|
|
|
- {
|
|
|
- disconnect();
|
|
|
-
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLFreeHandle
|
|
|
- , rc
|
|
|
- , SQL_HANDLE_DBC
|
|
|
- , conn_);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(conn_, SQL_HANDLE_DBC);
|
|
|
-
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLAllocHandle
|
|
|
- , rc
|
|
|
- , SQL_HANDLE_DBC
|
|
|
- , env_
|
|
|
- , &conn_);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(env_, SQL_HANDLE_ENV);
|
|
|
-
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLSetConnectAttr
|
|
|
- , rc
|
|
|
- , conn_
|
|
|
- , SQL_LOGIN_TIMEOUT
|
|
|
- , (SQLPOINTER)timeout
|
|
|
- , 0);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(conn_, SQL_HANDLE_DBC);
|
|
|
-
|
|
|
- NANODBC_CALL_RC(
|
|
|
- NANODBC_UNICODE(SQLConnect)
|
|
|
- , rc
|
|
|
- , conn_
|
|
|
- , (NANODBC_SQLCHAR*)dsn.c_str(), SQL_NTS
|
|
|
- , !user.empty() ? (NANODBC_SQLCHAR*)user.c_str() : 0, SQL_NTS
|
|
|
- , !pass.empty() ? (NANODBC_SQLCHAR*)pass.c_str() : 0, SQL_NTS);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(conn_, SQL_HANDLE_DBC);
|
|
|
-
|
|
|
- connected_ = success(rc);
|
|
|
- }
|
|
|
-
|
|
|
- void connect(const string_type& connection_string, long timeout)
|
|
|
- {
|
|
|
- disconnect();
|
|
|
-
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLFreeHandle
|
|
|
- , rc
|
|
|
- , SQL_HANDLE_DBC
|
|
|
- , conn_);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(conn_, SQL_HANDLE_DBC);
|
|
|
-
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLAllocHandle
|
|
|
- , rc
|
|
|
- , SQL_HANDLE_DBC
|
|
|
- , env_
|
|
|
- , &conn_);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(env_, SQL_HANDLE_ENV);
|
|
|
-
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLSetConnectAttr
|
|
|
- , rc
|
|
|
- , conn_
|
|
|
- , SQL_LOGIN_TIMEOUT
|
|
|
- , (SQLPOINTER)timeout
|
|
|
- , 0);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(conn_, SQL_HANDLE_DBC);
|
|
|
-
|
|
|
- NANODBC_SQLCHAR dsn[1024];
|
|
|
- SQLSMALLINT dsn_size = 0;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- NANODBC_UNICODE(SQLDriverConnect)
|
|
|
- , rc
|
|
|
- , conn_
|
|
|
- , 0
|
|
|
- , (NANODBC_SQLCHAR*)connection_string.c_str(), SQL_NTS
|
|
|
- , dsn
|
|
|
- , sizeof(dsn) / sizeof(NANODBC_SQLCHAR)
|
|
|
- , &dsn_size
|
|
|
- , SQL_DRIVER_NOPROMPT);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(conn_, SQL_HANDLE_DBC);
|
|
|
-
|
|
|
- connected_ = success(rc);
|
|
|
- }
|
|
|
-
|
|
|
- bool connected() const
|
|
|
- {
|
|
|
- return connected_;
|
|
|
- }
|
|
|
-
|
|
|
- void disconnect()
|
|
|
- {
|
|
|
- if(connected())
|
|
|
- {
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLDisconnect
|
|
|
- , rc
|
|
|
- , conn_);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(conn_, SQL_HANDLE_DBC);
|
|
|
- }
|
|
|
- connected_ = false;
|
|
|
- }
|
|
|
-
|
|
|
- std::size_t transactions() const
|
|
|
- {
|
|
|
- return transactions_;
|
|
|
- }
|
|
|
-
|
|
|
- void* native_dbc_handle() const
|
|
|
- {
|
|
|
- return conn_;
|
|
|
- }
|
|
|
-
|
|
|
- void* native_env_handle() const
|
|
|
- {
|
|
|
- return env_;
|
|
|
- }
|
|
|
-
|
|
|
- string_type driver_name() const
|
|
|
- {
|
|
|
- NANODBC_SQLCHAR name[1024];
|
|
|
- SQLSMALLINT length;
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- NANODBC_UNICODE(SQLGetInfo)
|
|
|
- , rc
|
|
|
- , conn_
|
|
|
- , SQL_DRIVER_NAME
|
|
|
- , name
|
|
|
- , sizeof(name) / sizeof(NANODBC_SQLCHAR)
|
|
|
- , &length);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(conn_, SQL_HANDLE_DBC);
|
|
|
- return string_type(&name[0], &name[strarrlen(name)]);
|
|
|
- }
|
|
|
-
|
|
|
- std::size_t ref_transaction()
|
|
|
- {
|
|
|
- return --transactions_;
|
|
|
- }
|
|
|
-
|
|
|
- std::size_t unref_transaction()
|
|
|
- {
|
|
|
- return ++transactions_;
|
|
|
- }
|
|
|
-
|
|
|
- bool rollback() const
|
|
|
- {
|
|
|
- return rollback_;
|
|
|
- }
|
|
|
-
|
|
|
- void rollback(bool onoff)
|
|
|
- {
|
|
|
- rollback_ = onoff;
|
|
|
- }
|
|
|
-
|
|
|
-private:
|
|
|
- HENV env_;
|
|
|
- HDBC conn_;
|
|
|
- bool connected_;
|
|
|
- std::size_t transactions_;
|
|
|
- bool rollback_; // if true, this connection is marked for eventual transaction rollback
|
|
|
-};
|
|
|
-
|
|
|
-} // namespace nanodbc
|
|
|
-
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-// Private Implementation: transaction
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-
|
|
|
-namespace nanodbc
|
|
|
-{
|
|
|
-
|
|
|
-class transaction::transaction_impl
|
|
|
-{
|
|
|
-public:
|
|
|
- transaction_impl(const transaction_impl&) =delete;
|
|
|
- transaction_impl& operator=(const transaction_impl&) =delete;
|
|
|
-
|
|
|
- transaction_impl(const class connection& conn)
|
|
|
- : conn_(conn)
|
|
|
- , committed_(false)
|
|
|
- {
|
|
|
- if(conn_.transactions() == 0 && conn_.connected())
|
|
|
- {
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLSetConnectAttr
|
|
|
- , rc
|
|
|
- , conn_.native_dbc_handle()
|
|
|
- , SQL_ATTR_AUTOCOMMIT
|
|
|
- , (SQLPOINTER)SQL_AUTOCOMMIT_OFF
|
|
|
- , SQL_IS_UINTEGER);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(conn_.native_dbc_handle(), SQL_HANDLE_DBC);
|
|
|
- }
|
|
|
- conn_.ref_transaction();
|
|
|
- }
|
|
|
-
|
|
|
- ~transaction_impl() noexcept
|
|
|
- {
|
|
|
- if(!committed_)
|
|
|
- {
|
|
|
- conn_.rollback(true);
|
|
|
- conn_.unref_transaction();
|
|
|
- }
|
|
|
-
|
|
|
- if(conn_.transactions() == 0 && conn_.connected())
|
|
|
- {
|
|
|
- if(conn_.rollback())
|
|
|
- {
|
|
|
- NANODBC_CALL(
|
|
|
- SQLEndTran
|
|
|
- , SQL_HANDLE_DBC
|
|
|
- , conn_.native_dbc_handle()
|
|
|
- , SQL_ROLLBACK);
|
|
|
- conn_.rollback(false);
|
|
|
- }
|
|
|
-
|
|
|
- NANODBC_CALL(
|
|
|
- SQLSetConnectAttr
|
|
|
- , conn_.native_dbc_handle()
|
|
|
- , SQL_ATTR_AUTOCOMMIT
|
|
|
- , (SQLPOINTER)SQL_AUTOCOMMIT_ON
|
|
|
- , SQL_IS_UINTEGER);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- void commit()
|
|
|
- {
|
|
|
- if(committed_)
|
|
|
- return;
|
|
|
- committed_ = true;
|
|
|
- if(conn_.unref_transaction() == 0 && conn_.connected())
|
|
|
- {
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLEndTran
|
|
|
- , rc
|
|
|
- , SQL_HANDLE_DBC
|
|
|
- , conn_.native_dbc_handle()
|
|
|
- , SQL_COMMIT);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(conn_.native_dbc_handle(), SQL_HANDLE_DBC);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- void rollback() noexcept
|
|
|
- {
|
|
|
- if(committed_)
|
|
|
- return;
|
|
|
- conn_.rollback(true);
|
|
|
- }
|
|
|
-
|
|
|
- class connection& connection()
|
|
|
- {
|
|
|
- return conn_;
|
|
|
- }
|
|
|
-
|
|
|
- const class connection& connection() const
|
|
|
- {
|
|
|
- return conn_;
|
|
|
- }
|
|
|
-
|
|
|
-private:
|
|
|
- class connection conn_;
|
|
|
- bool committed_;
|
|
|
-};
|
|
|
-
|
|
|
-} // namespace nanodbc
|
|
|
-
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-// Private Implementation: statement
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-
|
|
|
-namespace nanodbc
|
|
|
-{
|
|
|
-
|
|
|
-class statement::statement_impl
|
|
|
-{
|
|
|
-public:
|
|
|
- statement_impl(const statement_impl&) =delete;
|
|
|
- statement_impl& operator=(const statement_impl&) =delete;
|
|
|
-
|
|
|
- statement_impl()
|
|
|
- : stmt_(0)
|
|
|
- , open_(false)
|
|
|
- , conn_()
|
|
|
- , bind_len_or_null_()
|
|
|
- {
|
|
|
-
|
|
|
- }
|
|
|
-
|
|
|
- statement_impl(class connection& conn)
|
|
|
- : stmt_(0)
|
|
|
- , open_(false)
|
|
|
- , conn_()
|
|
|
- , bind_len_or_null_()
|
|
|
- {
|
|
|
- open(conn);
|
|
|
- }
|
|
|
-
|
|
|
- statement_impl(class connection& conn, const string_type& query, long timeout)
|
|
|
- : stmt_(0)
|
|
|
- , open_(false)
|
|
|
- , conn_()
|
|
|
- , bind_len_or_null_()
|
|
|
- {
|
|
|
- prepare(conn, query, timeout);
|
|
|
- }
|
|
|
-
|
|
|
- ~statement_impl() noexcept
|
|
|
- {
|
|
|
- if(open() && connected())
|
|
|
- {
|
|
|
- NANODBC_CALL(
|
|
|
- SQLCancel
|
|
|
- , stmt_);
|
|
|
- reset_parameters();
|
|
|
- NANODBC_CALL(
|
|
|
- SQLFreeHandle
|
|
|
- , SQL_HANDLE_STMT
|
|
|
- , stmt_);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- void open(class connection& conn)
|
|
|
- {
|
|
|
- close();
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLAllocHandle
|
|
|
- , rc
|
|
|
- , SQL_HANDLE_STMT
|
|
|
- , conn.native_dbc_handle()
|
|
|
- , &stmt_);
|
|
|
- open_ = success(rc);
|
|
|
- if(!open_)
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
- conn_ = conn;
|
|
|
- }
|
|
|
-
|
|
|
- bool open() const
|
|
|
- {
|
|
|
- return open_;
|
|
|
- }
|
|
|
-
|
|
|
- bool connected() const
|
|
|
- {
|
|
|
- return conn_.connected();
|
|
|
- }
|
|
|
-
|
|
|
- const class connection& connection() const
|
|
|
- {
|
|
|
- return conn_;
|
|
|
- }
|
|
|
-
|
|
|
- class connection& connection()
|
|
|
- {
|
|
|
- return conn_;
|
|
|
- }
|
|
|
-
|
|
|
- void* native_statement_handle() const
|
|
|
- {
|
|
|
- return stmt_;
|
|
|
- }
|
|
|
-
|
|
|
- void close()
|
|
|
- {
|
|
|
- if(open() && connected())
|
|
|
- {
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLCancel
|
|
|
- , rc
|
|
|
- , stmt_);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
-
|
|
|
- reset_parameters();
|
|
|
-
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLFreeHandle
|
|
|
- , rc
|
|
|
- , SQL_HANDLE_STMT
|
|
|
- , stmt_);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
- }
|
|
|
-
|
|
|
- open_ = false;
|
|
|
- stmt_ = 0;
|
|
|
- }
|
|
|
-
|
|
|
- void cancel()
|
|
|
- {
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLCancel
|
|
|
- , rc
|
|
|
- , stmt_);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
- }
|
|
|
-
|
|
|
- void prepare(class connection& conn, const string_type& query, long timeout)
|
|
|
- {
|
|
|
- open(conn);
|
|
|
- prepare(query, timeout);
|
|
|
- }
|
|
|
-
|
|
|
- void prepare(const string_type& query, long timeout)
|
|
|
- {
|
|
|
- if(!open())
|
|
|
- throw programming_error("statement has no associated open connection");
|
|
|
-
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- NANODBC_UNICODE(SQLPrepare)
|
|
|
- , rc
|
|
|
- , stmt_
|
|
|
- , (NANODBC_SQLCHAR*)query.c_str()
|
|
|
- , (SQLINTEGER)query.size());
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
-
|
|
|
- this->timeout(timeout);
|
|
|
- }
|
|
|
-
|
|
|
- void timeout(long timeout)
|
|
|
- {
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLSetStmtAttr
|
|
|
- , rc
|
|
|
- , stmt_
|
|
|
- , SQL_ATTR_QUERY_TIMEOUT
|
|
|
- , (SQLPOINTER)timeout,
|
|
|
- 0);
|
|
|
-
|
|
|
- // some drivers don't support timeout for statements,
|
|
|
- // so only raise the error if a non-default timeout was requested.
|
|
|
- if(!success(rc) && (timeout != 0))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
- }
|
|
|
-
|
|
|
- result execute_direct(
|
|
|
- class connection& conn
|
|
|
- , const string_type& query
|
|
|
- , long batch_operations
|
|
|
- , long timeout
|
|
|
- , statement& statement)
|
|
|
- {
|
|
|
- #ifdef NANODBC_HANDLE_NODATA_BUG
|
|
|
- const RETCODE rc = just_execute_direct(conn, query, batch_operations, timeout, statement);
|
|
|
- if(rc == SQL_NO_DATA)
|
|
|
- return result();
|
|
|
- #else
|
|
|
- just_execute_direct(conn, query, batch_operations, timeout, statement);
|
|
|
- #endif
|
|
|
- return result(statement, batch_operations);
|
|
|
- }
|
|
|
-
|
|
|
- RETCODE just_execute_direct(
|
|
|
- class connection& conn
|
|
|
- , const string_type& query
|
|
|
- , long batch_operations
|
|
|
- , long timeout
|
|
|
- , statement& statement)
|
|
|
- {
|
|
|
- open(conn);
|
|
|
-
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLSetStmtAttr
|
|
|
- , rc
|
|
|
- , stmt_
|
|
|
- , SQL_ATTR_PARAMSET_SIZE
|
|
|
- , (SQLPOINTER)batch_operations
|
|
|
- , 0);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
-
|
|
|
- this->timeout(timeout);
|
|
|
-
|
|
|
- NANODBC_CALL_RC(
|
|
|
- NANODBC_UNICODE(SQLExecDirect)
|
|
|
- , rc
|
|
|
- , stmt_
|
|
|
- , (NANODBC_SQLCHAR*)query.c_str()
|
|
|
- , SQL_NTS);
|
|
|
- if(!success(rc) && rc != SQL_NO_DATA)
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
-
|
|
|
- return rc;
|
|
|
- }
|
|
|
-
|
|
|
- result execute(long batch_operations, long timeout, statement& statement)
|
|
|
- {
|
|
|
- #ifdef NANODBC_HANDLE_NODATA_BUG
|
|
|
- const RETCODE rc = just_execute(batch_operations, timeout, statement);
|
|
|
- if(rc == SQL_NO_DATA)
|
|
|
- return result();
|
|
|
- #else
|
|
|
- just_execute(batch_operations, timeout, statement);
|
|
|
- #endif
|
|
|
- return result(statement, batch_operations);
|
|
|
- }
|
|
|
-
|
|
|
- RETCODE just_execute(long batch_operations, long timeout, statement& statement)
|
|
|
- {
|
|
|
- RETCODE rc;
|
|
|
-
|
|
|
- if(open())
|
|
|
- {
|
|
|
- // The ODBC cursor must be closed before subsequent executions, as described
|
|
|
- // here http://msdn.microsoft.com/en-us/library/windows/desktop/ms713584%28v=vs.85%29.aspx
|
|
|
- //
|
|
|
- // However, we don't necessarily want to call SQLCloseCursor() because that
|
|
|
- // will cause an invalid cursor state in the case that no cursor is currently open.
|
|
|
- // A better solution is to use SQLFreeStmt() with the SQL_CLOSE option, which has
|
|
|
- // the same effect without the undesired limitations.
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLFreeStmt
|
|
|
- , rc
|
|
|
- , stmt_
|
|
|
- , SQL_CLOSE);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
- }
|
|
|
-
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLSetStmtAttr
|
|
|
- , rc
|
|
|
- , stmt_
|
|
|
- , SQL_ATTR_PARAMSET_SIZE
|
|
|
- , (SQLPOINTER)batch_operations
|
|
|
- , 0);
|
|
|
- if(!success(rc) && rc != SQL_NO_DATA)
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
-
|
|
|
- this->timeout(timeout);
|
|
|
-
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLExecute
|
|
|
- , rc
|
|
|
- , stmt_);
|
|
|
- if(!success(rc) && rc != SQL_NO_DATA)
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
-
|
|
|
- return rc;
|
|
|
- }
|
|
|
-
|
|
|
- result procedure_columns(
|
|
|
- const string_type& catalog
|
|
|
- , const string_type& schema
|
|
|
- , const string_type& procedure
|
|
|
- , const string_type& column
|
|
|
- , statement& statement)
|
|
|
- {
|
|
|
- if(!open())
|
|
|
- throw programming_error("statement has no associated open connection");
|
|
|
-
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- NANODBC_UNICODE(SQLProcedureColumns)
|
|
|
- , rc
|
|
|
- , stmt_
|
|
|
- , (NANODBC_SQLCHAR*)(catalog.empty() ? NULL : catalog.c_str())
|
|
|
- , (catalog.empty() ? 0 : SQL_NTS)
|
|
|
- , (NANODBC_SQLCHAR*)(schema.empty() ? NULL : schema.c_str())
|
|
|
- , (schema.empty() ? 0 : SQL_NTS)
|
|
|
- , (NANODBC_SQLCHAR*)procedure.c_str()
|
|
|
- , SQL_NTS
|
|
|
- , (NANODBC_SQLCHAR*)(column.empty() ? NULL : column.c_str())
|
|
|
- , (column.empty() ? 0 : SQL_NTS));
|
|
|
-
|
|
|
- if (!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
-
|
|
|
- return result(statement, 1);
|
|
|
- }
|
|
|
-
|
|
|
- long affected_rows() const
|
|
|
- {
|
|
|
- SQLLEN rows;
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLRowCount
|
|
|
- , rc
|
|
|
- , stmt_
|
|
|
- , &rows);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
- return rows;
|
|
|
- }
|
|
|
-
|
|
|
- short columns() const
|
|
|
- {
|
|
|
- SQLSMALLINT cols;
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLNumResultCols
|
|
|
- , rc
|
|
|
- , stmt_
|
|
|
- , &cols);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
- return cols;
|
|
|
- }
|
|
|
-
|
|
|
- void reset_parameters() noexcept
|
|
|
- {
|
|
|
- NANODBC_CALL(
|
|
|
- SQLFreeStmt
|
|
|
- , stmt_
|
|
|
- , SQL_RESET_PARAMS);
|
|
|
- }
|
|
|
-
|
|
|
- unsigned long parameter_size(short param) const
|
|
|
- {
|
|
|
- RETCODE rc;
|
|
|
- SQLSMALLINT data_type;
|
|
|
- SQLULEN parameter_size;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLDescribeParam
|
|
|
- , rc
|
|
|
- , stmt_
|
|
|
- , param + 1
|
|
|
- , &data_type
|
|
|
- , ¶meter_size
|
|
|
- , 0
|
|
|
- , 0);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
- return parameter_size;
|
|
|
- }
|
|
|
-
|
|
|
- static SQLSMALLINT param_type_from_direction(param_direction direction)
|
|
|
- {
|
|
|
- switch(direction)
|
|
|
- {
|
|
|
- default:
|
|
|
- assert(false);
|
|
|
- // fallthrough
|
|
|
- case PARAM_IN:
|
|
|
- return SQL_PARAM_INPUT;
|
|
|
- break;
|
|
|
- case PARAM_OUT:
|
|
|
- return SQL_PARAM_OUTPUT;
|
|
|
- break;
|
|
|
- case PARAM_INOUT:
|
|
|
- return SQL_PARAM_INPUT_OUTPUT;
|
|
|
- break;
|
|
|
- case PARAM_RETURN:
|
|
|
- return SQL_PARAM_OUTPUT;
|
|
|
- break;
|
|
|
- }
|
|
|
- // Remove warning C4702 : unreachable code nanodbc.cpp 1284 Nanodbc
|
|
|
- assert(false);
|
|
|
- }
|
|
|
-
|
|
|
- // initializes bind_len_or_null_ and gets information for bind
|
|
|
- void prepare_bind(
|
|
|
- short param
|
|
|
- , std::size_t elements
|
|
|
- , param_direction direction
|
|
|
- , SQLSMALLINT& data_type
|
|
|
- , SQLSMALLINT& param_type
|
|
|
- , SQLULEN& parameter_size)
|
|
|
- {
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLDescribeParam
|
|
|
- , rc
|
|
|
- , stmt_
|
|
|
- , param + 1
|
|
|
- , &data_type
|
|
|
- , ¶meter_size
|
|
|
- , 0
|
|
|
- , 0);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
-
|
|
|
- param_type = param_type_from_direction(direction);
|
|
|
-
|
|
|
- if(!bind_len_or_null_.count(param))
|
|
|
- bind_len_or_null_[param] = std::vector<null_type>();
|
|
|
- std::vector<null_type>().swap(bind_len_or_null_[param]);
|
|
|
-
|
|
|
- // ODBC weirdness: this must be at least 8 elements in size
|
|
|
- const std::size_t indicator_size = elements > 8 ? elements : 8;
|
|
|
-
|
|
|
- bind_len_or_null_[param].reserve(indicator_size);
|
|
|
- bind_len_or_null_[param].assign(indicator_size, SQL_NULL_DATA);
|
|
|
- }
|
|
|
-
|
|
|
- // calls actual ODBC bind parameter function
|
|
|
- template<class T>
|
|
|
- void bind_parameter(
|
|
|
- short param
|
|
|
- , const T* data
|
|
|
- , std::size_t /*elements*/
|
|
|
- , SQLSMALLINT data_type
|
|
|
- , SQLSMALLINT param_type
|
|
|
- , SQLULEN parameter_size)
|
|
|
- {
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLBindParameter
|
|
|
- , rc
|
|
|
- , stmt_ // handle
|
|
|
- , param + 1 // parameter number
|
|
|
- , param_type // input or output type
|
|
|
- , sql_ctype<T>::value // value type
|
|
|
- , data_type // parameter type
|
|
|
- , parameter_size // column size ignored for many types, but needed for strings
|
|
|
- , 0 // decimal digits
|
|
|
- , (SQLPOINTER)data // parameter value
|
|
|
- , parameter_size // buffer length
|
|
|
- , bind_len_or_null_[param].data());
|
|
|
-
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
- }
|
|
|
-
|
|
|
- // handles a single value (possibly a single string value), or multiple non-string values
|
|
|
- template<class T>
|
|
|
- void bind(short param, const T* values, std::size_t elements, param_direction direction);
|
|
|
-
|
|
|
- // handles multiple string values
|
|
|
- void bind_strings(
|
|
|
- short param
|
|
|
- , const string_type::value_type* values
|
|
|
- , std::size_t /*length*/
|
|
|
- , std::size_t elements
|
|
|
- , param_direction direction)
|
|
|
- {
|
|
|
- bind(param, values, elements, direction);
|
|
|
- }
|
|
|
-
|
|
|
- // handles multiple null values
|
|
|
- void bind_null(short param, std::size_t elements)
|
|
|
- {
|
|
|
- SQLSMALLINT data_type;
|
|
|
- SQLSMALLINT param_type;
|
|
|
- SQLULEN parameter_size;
|
|
|
- prepare_bind(param, elements, PARAM_IN, data_type, param_type, parameter_size);
|
|
|
-
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLBindParameter
|
|
|
- , rc
|
|
|
- , stmt_
|
|
|
- , param + 1
|
|
|
- , param_type
|
|
|
- , SQL_C_CHAR
|
|
|
- , data_type
|
|
|
- , parameter_size // column size ignored for many types, but needed for strings
|
|
|
- , 0
|
|
|
- , (SQLPOINTER)0 // null value
|
|
|
- , 0 // parameter_size
|
|
|
- , bind_len_or_null_[param].data());
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
- }
|
|
|
-
|
|
|
- // comparator for null sentry values
|
|
|
- template<class T>
|
|
|
- bool equals(const T& lhs, const T& rhs)
|
|
|
- {
|
|
|
- return lhs == rhs;
|
|
|
- }
|
|
|
-
|
|
|
- // handles multiple non-string values with a null sentry
|
|
|
- template<class T>
|
|
|
- void bind(
|
|
|
- short param
|
|
|
- , const T* values
|
|
|
- , std::size_t elements
|
|
|
- , const bool* nulls
|
|
|
- , const T* null_sentry
|
|
|
- , param_direction direction);
|
|
|
-
|
|
|
- // handles multiple string values
|
|
|
- void bind_strings(
|
|
|
- short param
|
|
|
- , const string_type::value_type* values
|
|
|
- , std::size_t length
|
|
|
- , std::size_t elements
|
|
|
- , const bool* nulls
|
|
|
- , const string_type::value_type* null_sentry
|
|
|
- , param_direction direction);
|
|
|
-
|
|
|
-private:
|
|
|
- HSTMT stmt_;
|
|
|
- bool open_;
|
|
|
- class connection conn_;
|
|
|
- std::map<short, std::vector<null_type> > bind_len_or_null_;
|
|
|
-};
|
|
|
-
|
|
|
-// Supports code like: query.bind(0, std_string.c_str())
|
|
|
-// In this case, we need to pass NULL to the final parameter of SQLBindParameter().
|
|
|
-template<>
|
|
|
-void statement::statement_impl::bind_parameter<string_type::value_type>(
|
|
|
- short param
|
|
|
- , const string_type::value_type* data
|
|
|
- , std::size_t elements
|
|
|
- , SQLSMALLINT data_type
|
|
|
- , SQLSMALLINT param_type
|
|
|
- , SQLULEN parameter_size)
|
|
|
-{
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLBindParameter
|
|
|
- , rc
|
|
|
- , stmt_ // handle
|
|
|
- , param + 1 // parameter number
|
|
|
- , param_type // input or output type
|
|
|
- , sql_ctype<string_type::value_type>::value // value type
|
|
|
- , data_type // parameter type
|
|
|
- , parameter_size // column size ignored for many types, but needed for strings
|
|
|
- , 0 // decimal digits
|
|
|
- , (SQLPOINTER)data // parameter value
|
|
|
- , parameter_size // buffer length
|
|
|
- , (elements <= 1 ? NULL : bind_len_or_null_[param].data()));
|
|
|
-
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_, SQL_HANDLE_STMT);
|
|
|
-}
|
|
|
-
|
|
|
-template<class T>
|
|
|
-void statement::statement_impl::bind(
|
|
|
- short param
|
|
|
- , const T* values
|
|
|
- , std::size_t elements
|
|
|
- , param_direction direction)
|
|
|
-{
|
|
|
- SQLSMALLINT data_type;
|
|
|
- SQLSMALLINT param_type;
|
|
|
- SQLULEN parameter_size;
|
|
|
- prepare_bind(param, elements, direction, data_type, param_type, parameter_size);
|
|
|
-
|
|
|
- for(std::size_t i = 0; i < elements; ++i)
|
|
|
- bind_len_or_null_[param][i] = parameter_size;
|
|
|
-
|
|
|
- bind_parameter(param, values, elements, data_type, param_type, parameter_size);
|
|
|
-}
|
|
|
-
|
|
|
-template<class T>
|
|
|
-void statement::statement_impl::bind(
|
|
|
- short param
|
|
|
- , const T* values
|
|
|
- , std::size_t elements
|
|
|
- , const bool* nulls
|
|
|
- , const T* null_sentry
|
|
|
- , param_direction direction)
|
|
|
-{
|
|
|
- SQLSMALLINT data_type;
|
|
|
- SQLSMALLINT param_type;
|
|
|
- SQLULEN parameter_size;
|
|
|
- prepare_bind(param, elements, direction, data_type, param_type, parameter_size);
|
|
|
-
|
|
|
- for(std::size_t i = 0; i < elements; ++i)
|
|
|
- if((null_sentry && !equals(values[i], *null_sentry)) || (nulls && !nulls[i]))
|
|
|
- bind_len_or_null_[param][i] = parameter_size;
|
|
|
-
|
|
|
- bind_parameter(param, values, elements, data_type, param_type, parameter_size);
|
|
|
-}
|
|
|
-
|
|
|
-void statement::statement_impl::bind_strings(
|
|
|
- short param
|
|
|
- , const string_type::value_type* values
|
|
|
- , std::size_t length
|
|
|
- , std::size_t elements
|
|
|
- , const bool* nulls
|
|
|
- , const string_type::value_type* null_sentry
|
|
|
- , param_direction direction)
|
|
|
-{
|
|
|
- SQLSMALLINT data_type;
|
|
|
- SQLSMALLINT param_type;
|
|
|
- SQLULEN parameter_size;
|
|
|
- prepare_bind(param, elements, direction, data_type, param_type, parameter_size);
|
|
|
-
|
|
|
- if(null_sentry)
|
|
|
- {
|
|
|
- const string_type rhs(null_sentry);
|
|
|
- for(std::size_t i = 0; i < elements; ++i)
|
|
|
- {
|
|
|
- const string_type lhs(values + i * length, values + (i + 1) * length);
|
|
|
- if(NANADBC_STRNCMP(lhs.c_str(), rhs.c_str(), length))
|
|
|
- bind_len_or_null_[param][i] = parameter_size;
|
|
|
- }
|
|
|
- }
|
|
|
- else if(nulls)
|
|
|
- {
|
|
|
- for(std::size_t i = 0; i < elements; ++i)
|
|
|
- {
|
|
|
- if(!nulls[i])
|
|
|
- bind_len_or_null_[param][i] = SQL_NTS; // null terminated
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- bind_parameter(param, values, elements, data_type, param_type, parameter_size);
|
|
|
-}
|
|
|
-
|
|
|
-template<>
|
|
|
-bool statement::statement_impl::equals(const date& lhs, const date& rhs)
|
|
|
-{
|
|
|
- return lhs.year == rhs.year
|
|
|
- && lhs.month == rhs.month
|
|
|
- && lhs.day == rhs.day;
|
|
|
-}
|
|
|
-
|
|
|
-template<>
|
|
|
-bool statement::statement_impl::equals(const timestamp& lhs, const timestamp& rhs)
|
|
|
-{
|
|
|
- return lhs.year == rhs.year
|
|
|
- && lhs.month == rhs.month
|
|
|
- && lhs.day == rhs.day
|
|
|
- && lhs.hour == rhs.hour
|
|
|
- && lhs.min == rhs.min
|
|
|
- && lhs.sec == rhs.sec
|
|
|
- && lhs.fract == rhs.fract;
|
|
|
-}
|
|
|
-
|
|
|
-} // namespace nanodbc
|
|
|
-
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-// Private Implementation: result
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-
|
|
|
-namespace nanodbc
|
|
|
-{
|
|
|
-
|
|
|
-class result::result_impl
|
|
|
-{
|
|
|
-public:
|
|
|
- result_impl(const result_impl&) =delete;
|
|
|
- result_impl& operator=(const result_impl&) =delete;
|
|
|
-
|
|
|
- result_impl(statement stmt, long rowset_size)
|
|
|
- : stmt_(stmt)
|
|
|
- , rowset_size_(rowset_size)
|
|
|
- , row_count_(0)
|
|
|
- , bound_columns_(0)
|
|
|
- , bound_columns_size_(0)
|
|
|
- , rowset_position_(0)
|
|
|
- , bound_columns_by_name_()
|
|
|
- {
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLSetStmtAttr
|
|
|
- , rc
|
|
|
- , stmt_.native_statement_handle()
|
|
|
- , SQL_ATTR_ROW_ARRAY_SIZE
|
|
|
- , (SQLPOINTER)rowset_size_
|
|
|
- , 0);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_.native_statement_handle(), SQL_HANDLE_STMT);
|
|
|
-
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLSetStmtAttr
|
|
|
- , rc
|
|
|
- , stmt_.native_statement_handle()
|
|
|
- , SQL_ATTR_ROWS_FETCHED_PTR
|
|
|
- , &row_count_
|
|
|
- , 0);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_.native_statement_handle(), SQL_HANDLE_STMT);
|
|
|
-
|
|
|
- auto_bind();
|
|
|
- }
|
|
|
-
|
|
|
- ~result_impl() noexcept
|
|
|
- {
|
|
|
- cleanup_bound_columns();
|
|
|
- }
|
|
|
-
|
|
|
- void* native_statement_handle() const
|
|
|
- {
|
|
|
- return stmt_.native_statement_handle();
|
|
|
- }
|
|
|
-
|
|
|
- long rowset_size() const
|
|
|
- {
|
|
|
- return rowset_size_;
|
|
|
- }
|
|
|
-
|
|
|
- long affected_rows() const
|
|
|
- {
|
|
|
- return stmt_.affected_rows();
|
|
|
- }
|
|
|
-
|
|
|
- long rows() const noexcept
|
|
|
- {
|
|
|
- return row_count_;
|
|
|
- }
|
|
|
-
|
|
|
- short columns() const
|
|
|
- {
|
|
|
- return stmt_.columns();
|
|
|
- }
|
|
|
-
|
|
|
- bool first()
|
|
|
- {
|
|
|
- rowset_position_ = 0;
|
|
|
- return fetch(0, SQL_FETCH_FIRST);
|
|
|
- }
|
|
|
-
|
|
|
- bool last()
|
|
|
- {
|
|
|
- rowset_position_ = 0;
|
|
|
- return fetch(0, SQL_FETCH_LAST);
|
|
|
- }
|
|
|
-
|
|
|
- bool next()
|
|
|
- {
|
|
|
- if(rows() && ++rowset_position_ < rowset_size_)
|
|
|
- return rowset_position_ < rows();
|
|
|
- rowset_position_ = 0;
|
|
|
- return fetch(0, SQL_FETCH_NEXT);
|
|
|
- }
|
|
|
-
|
|
|
- bool prior()
|
|
|
- {
|
|
|
- if(rows() && --rowset_position_ >= 0)
|
|
|
- return true;
|
|
|
- rowset_position_ = 0;
|
|
|
- return fetch(0, SQL_FETCH_PRIOR);
|
|
|
- }
|
|
|
-
|
|
|
- bool move(long row)
|
|
|
- {
|
|
|
- rowset_position_ = 0;
|
|
|
- return fetch(row, SQL_FETCH_ABSOLUTE);
|
|
|
- }
|
|
|
-
|
|
|
- bool skip(long rows)
|
|
|
- {
|
|
|
- rowset_position_ += rows;
|
|
|
- if(this->rows() && rowset_position_ < rowset_size_)
|
|
|
- return rowset_position_ < this->rows();
|
|
|
- rowset_position_ = 0;
|
|
|
- return fetch(rows, SQL_FETCH_RELATIVE);
|
|
|
- }
|
|
|
-
|
|
|
- unsigned long position() const
|
|
|
- {
|
|
|
- SQLULEN pos = 0; // necessary to initialize to 0
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLGetStmtAttr
|
|
|
- , rc
|
|
|
- , stmt_.native_statement_handle()
|
|
|
- , SQL_ATTR_ROW_NUMBER
|
|
|
- , &pos
|
|
|
- , SQL_IS_UINTEGER
|
|
|
- , 0);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_.native_statement_handle(), SQL_HANDLE_STMT);
|
|
|
- return pos - 1 + rowset_position_;
|
|
|
- }
|
|
|
-
|
|
|
- bool end() const noexcept
|
|
|
- {
|
|
|
- SQLULEN pos = 0; // necessary to initialize to 0
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLGetStmtAttr
|
|
|
- , rc
|
|
|
- , stmt_.native_statement_handle()
|
|
|
- , SQL_ATTR_ROW_NUMBER
|
|
|
- , &pos
|
|
|
- , SQL_IS_UINTEGER
|
|
|
- , 0);
|
|
|
- return (!success(rc) || rows() < 0 || pos - 1 > static_cast<unsigned long>(rows()));
|
|
|
- }
|
|
|
-
|
|
|
- bool is_null(short column) const
|
|
|
- {
|
|
|
- if(column >= bound_columns_size_)
|
|
|
- throw index_range_error();
|
|
|
- bound_column& col = bound_columns_[column];
|
|
|
- if(rowset_position_ >= rows())
|
|
|
- throw index_range_error();
|
|
|
- return col.cbdata_[rowset_position_] == SQL_NULL_DATA;
|
|
|
- }
|
|
|
-
|
|
|
- bool is_null(const string_type& column_name) const
|
|
|
- {
|
|
|
- const short column = this->column(column_name);
|
|
|
- return is_null(column);
|
|
|
- }
|
|
|
-
|
|
|
- string_type column_name(short column) const
|
|
|
- {
|
|
|
- if(column >= bound_columns_size_)
|
|
|
- throw index_range_error();
|
|
|
- return bound_columns_[column].name_;
|
|
|
- }
|
|
|
-
|
|
|
- long column_size(short column) const
|
|
|
- {
|
|
|
- if(column >= bound_columns_size_)
|
|
|
- throw index_range_error();
|
|
|
- bound_column& col = bound_columns_[column];
|
|
|
- return col.sqlsize_;
|
|
|
- }
|
|
|
-
|
|
|
- short column(const string_type& column_name) const
|
|
|
- {
|
|
|
- typedef std::map<string_type, bound_column*>::const_iterator iter;
|
|
|
- iter i = bound_columns_by_name_.find(column_name);
|
|
|
- if(i == bound_columns_by_name_.end())
|
|
|
- throw index_range_error();
|
|
|
- return i->second->column_;
|
|
|
- }
|
|
|
-
|
|
|
- int column_datatype(short column) const
|
|
|
- {
|
|
|
- if(column >= bound_columns_size_)
|
|
|
- throw index_range_error();
|
|
|
- bound_column& col = bound_columns_[column];
|
|
|
- return col.sqltype_;
|
|
|
- }
|
|
|
-
|
|
|
- int column_datatype(const string_type& column_name) const
|
|
|
- {
|
|
|
- const short column = this->column(column_name);
|
|
|
- bound_column& col = bound_columns_[column];
|
|
|
- return col.sqltype_;
|
|
|
- }
|
|
|
-
|
|
|
- int column_c_datatype(short column) const
|
|
|
- {
|
|
|
- if(column >= bound_columns_size_)
|
|
|
- throw index_range_error();
|
|
|
- bound_column& col = bound_columns_[column];
|
|
|
- return col.ctype_;
|
|
|
- }
|
|
|
-
|
|
|
- int column_c_datatype(const string_type& column_name) const
|
|
|
- {
|
|
|
- const short column = this->column(column_name);
|
|
|
- bound_column& col = bound_columns_[column];
|
|
|
- return col.ctype_;
|
|
|
- }
|
|
|
-
|
|
|
- bool next_result()
|
|
|
- {
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLMoreResults
|
|
|
- , rc
|
|
|
- , stmt_.native_statement_handle());
|
|
|
- if(rc == SQL_NO_DATA)
|
|
|
- return false;
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_.native_statement_handle(), SQL_HANDLE_STMT);
|
|
|
- auto_bind();
|
|
|
- return true;
|
|
|
- }
|
|
|
-
|
|
|
- template<class T>
|
|
|
- void get_ref(short column, T& result) const
|
|
|
- {
|
|
|
- if(column >= bound_columns_size_)
|
|
|
- throw index_range_error();
|
|
|
- if(is_null(column))
|
|
|
- throw null_access_error();
|
|
|
- get_ref_impl<T>(column, result);
|
|
|
- }
|
|
|
-
|
|
|
- template<class T>
|
|
|
- void get_ref(short column, const T& fallback, T& result) const
|
|
|
- {
|
|
|
- if(column >= bound_columns_size_)
|
|
|
- throw index_range_error();
|
|
|
- if(is_null(column))
|
|
|
- {
|
|
|
- result = fallback;
|
|
|
- return;
|
|
|
- }
|
|
|
- get_ref_impl<T>(column, result);
|
|
|
- }
|
|
|
-
|
|
|
- template<class T>
|
|
|
- void get_ref(const string_type& column_name, T& result) const
|
|
|
- {
|
|
|
- const short column = this->column(column_name);
|
|
|
- if(is_null(column))
|
|
|
- throw null_access_error();
|
|
|
- get_ref_impl<T>(column, result);
|
|
|
- }
|
|
|
-
|
|
|
- template<class T>
|
|
|
- void get_ref(const string_type& column_name, const T& fallback, T& result) const
|
|
|
- {
|
|
|
- const short column = this->column(column_name);
|
|
|
- if(is_null(column))
|
|
|
- {
|
|
|
- result = fallback;
|
|
|
- return;
|
|
|
- }
|
|
|
- get_ref_impl<T>(column, result);
|
|
|
- }
|
|
|
-
|
|
|
- template<class T>
|
|
|
- T get(short column) const
|
|
|
- {
|
|
|
- T result;
|
|
|
- get_ref(column, result);
|
|
|
- return result;
|
|
|
- }
|
|
|
-
|
|
|
- template<class T>
|
|
|
- T get(short column, const T& fallback) const
|
|
|
- {
|
|
|
- T result;
|
|
|
- get_ref(column, fallback, result);
|
|
|
- return result;
|
|
|
- }
|
|
|
-
|
|
|
- template<class T>
|
|
|
- T get(const string_type& column_name) const
|
|
|
- {
|
|
|
- T result;
|
|
|
- get_ref(column_name, result);
|
|
|
- return result;
|
|
|
- }
|
|
|
-
|
|
|
- template<class T>
|
|
|
- T get(const string_type& column_name, const T& fallback) const
|
|
|
- {
|
|
|
- T result;
|
|
|
- get_ref(column_name, fallback, result);
|
|
|
- return result;
|
|
|
- }
|
|
|
-
|
|
|
-private:
|
|
|
- template<class T>
|
|
|
- void get_ref_impl(short column, T& result) const;
|
|
|
-
|
|
|
- void before_move() noexcept
|
|
|
- {
|
|
|
- for(short i = 0; i < bound_columns_size_; ++i)
|
|
|
- {
|
|
|
- bound_column& col = bound_columns_[i];
|
|
|
- for(long j = 0; j < col.rowset_size_; ++j)
|
|
|
- col.cbdata_[j] = 0;
|
|
|
- if(col.blob_ && col.pdata_)
|
|
|
- release_bound_resources(i);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- void release_bound_resources(short column) noexcept
|
|
|
- {
|
|
|
- assert(column < bound_columns_size_);
|
|
|
- bound_column& col = bound_columns_[column];
|
|
|
- delete[] col.pdata_;
|
|
|
- col.pdata_ = 0;
|
|
|
- col.clen_ = 0;
|
|
|
- }
|
|
|
-
|
|
|
- void cleanup_bound_columns() noexcept
|
|
|
- {
|
|
|
- before_move();
|
|
|
- delete[] bound_columns_;
|
|
|
- bound_columns_ = NULL;
|
|
|
- bound_columns_size_ = 0;
|
|
|
- bound_columns_by_name_.clear();
|
|
|
- }
|
|
|
-
|
|
|
- bool fetch(long rows, SQLUSMALLINT orientation)
|
|
|
- {
|
|
|
- before_move();
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLFetchScroll
|
|
|
- , rc
|
|
|
- , stmt_.native_statement_handle()
|
|
|
- , orientation
|
|
|
- , rows);
|
|
|
- if(rc == SQL_NO_DATA)
|
|
|
- return false;
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_.native_statement_handle(), SQL_HANDLE_STMT);
|
|
|
- return true;
|
|
|
- }
|
|
|
-
|
|
|
- void auto_bind()
|
|
|
- {
|
|
|
- cleanup_bound_columns();
|
|
|
-
|
|
|
- const short n_columns = columns();
|
|
|
- if(n_columns < 1)
|
|
|
- return;
|
|
|
-
|
|
|
- assert(!bound_columns_);
|
|
|
- assert(!bound_columns_size_);
|
|
|
- bound_columns_ = new bound_column[n_columns];
|
|
|
- bound_columns_size_ = n_columns;
|
|
|
-
|
|
|
- RETCODE rc;
|
|
|
- NANODBC_SQLCHAR column_name[1024];
|
|
|
- SQLSMALLINT sqltype, scale, nullable, len;
|
|
|
- SQLULEN sqlsize;
|
|
|
-
|
|
|
- for(SQLSMALLINT i = 0; i < n_columns; ++i)
|
|
|
- {
|
|
|
- NANODBC_CALL_RC(
|
|
|
- NANODBC_UNICODE(SQLDescribeCol)
|
|
|
- , rc
|
|
|
- , stmt_.native_statement_handle()
|
|
|
- , i + 1
|
|
|
- , (NANODBC_SQLCHAR*)column_name
|
|
|
- , sizeof(column_name)/sizeof(NANODBC_SQLCHAR)
|
|
|
- , &len
|
|
|
- , &sqltype
|
|
|
- , &sqlsize
|
|
|
- , &scale
|
|
|
- , &nullable);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_.native_statement_handle(), SQL_HANDLE_STMT);
|
|
|
-
|
|
|
- // Adjust the sqlsize parameter in case of "unlimited" data (varchar(max), nvarchar(max)).
|
|
|
- bool is_blob = false;
|
|
|
-
|
|
|
- if (sqlsize == 0)
|
|
|
- {
|
|
|
- switch (sqltype)
|
|
|
- {
|
|
|
- case SQL_VARCHAR:
|
|
|
- case SQL_WVARCHAR:
|
|
|
- {
|
|
|
- //// Divide in half, due to sqlsize being 32-bit in Win32 (and 64-bit in x64)
|
|
|
- //sqlsize = std::numeric_limits<int32_t>::max() / 2 - 1;
|
|
|
- is_blob = true;
|
|
|
- }
|
|
|
-
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- bound_column& col = bound_columns_[i];
|
|
|
- col.name_ = reinterpret_cast<string_type::value_type*>(column_name);
|
|
|
- col.column_ = i;
|
|
|
- col.sqltype_ = sqltype;
|
|
|
- col.sqlsize_ = sqlsize;
|
|
|
- col.scale_ = scale;
|
|
|
- bound_columns_by_name_[col.name_] = &col;
|
|
|
-
|
|
|
- using namespace std; // if int64_t is in std namespace (in c++11)
|
|
|
- switch(col.sqltype_)
|
|
|
- {
|
|
|
- case SQL_BIT:
|
|
|
- case SQL_TINYINT:
|
|
|
- case SQL_SMALLINT:
|
|
|
- case SQL_INTEGER:
|
|
|
- col.ctype_ = SQL_C_LONG;
|
|
|
- col.clen_ = sizeof(int32_t);
|
|
|
- break;
|
|
|
- case SQL_BIGINT:
|
|
|
- col.ctype_ = SQL_C_SBIGINT;
|
|
|
- col.clen_ = sizeof(int64_t);
|
|
|
- break;
|
|
|
- case SQL_DOUBLE:
|
|
|
- case SQL_FLOAT:
|
|
|
- case SQL_DECIMAL:
|
|
|
- case SQL_REAL:
|
|
|
- case SQL_NUMERIC:
|
|
|
- col.ctype_ = SQL_C_DOUBLE;
|
|
|
- col.clen_ = sizeof(double);
|
|
|
- break;
|
|
|
- case SQL_DATE:
|
|
|
- case SQL_TYPE_DATE:
|
|
|
- col.ctype_ = SQL_C_DATE;
|
|
|
- col.clen_ = sizeof(date);
|
|
|
- break;
|
|
|
- case SQL_TIMESTAMP:
|
|
|
- case SQL_TYPE_TIMESTAMP:
|
|
|
- col.ctype_ = SQL_C_TIMESTAMP;
|
|
|
- col.clen_ = sizeof(timestamp);
|
|
|
- break;
|
|
|
- case SQL_CHAR:
|
|
|
- case SQL_VARCHAR:
|
|
|
- col.ctype_ = SQL_C_CHAR;
|
|
|
- col.clen_ = (col.sqlsize_ + 1) * sizeof(SQLCHAR);
|
|
|
- if (is_blob)
|
|
|
- {
|
|
|
- col.clen_ = 0;
|
|
|
- col.blob_ = true;
|
|
|
- }
|
|
|
- break;
|
|
|
- case SQL_WCHAR:
|
|
|
- case SQL_WVARCHAR:
|
|
|
- col.ctype_ = SQL_C_WCHAR;
|
|
|
- col.clen_ = (col.sqlsize_ + 1) * sizeof(SQLWCHAR);
|
|
|
- if (is_blob)
|
|
|
- {
|
|
|
- col.clen_ = 0;
|
|
|
- col.blob_ = true;
|
|
|
- }
|
|
|
- break;
|
|
|
- case SQL_LONGVARCHAR:
|
|
|
- col.ctype_ = SQL_C_CHAR;
|
|
|
- col.blob_ = true;
|
|
|
- col.clen_ = 0;
|
|
|
- break;
|
|
|
- case SQL_BINARY:
|
|
|
- case SQL_VARBINARY:
|
|
|
- col.ctype_ = SQL_C_BINARY;
|
|
|
- col.clen_ = col.sqlsize_ + sizeof(NANODBC_SQLCHAR);
|
|
|
- break;
|
|
|
- case SQL_LONGVARBINARY:
|
|
|
- col.ctype_ = SQL_C_BINARY;
|
|
|
- col.blob_ = true;
|
|
|
- col.clen_ = 0;
|
|
|
- break;
|
|
|
- default:
|
|
|
- col.ctype_ = sql_ctype<string_type>::value;
|
|
|
- col.clen_ = 128;
|
|
|
- break;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- for(SQLSMALLINT i = 0; i < n_columns; ++i)
|
|
|
- {
|
|
|
- bound_column& col = bound_columns_[i];
|
|
|
- col.cbdata_ = new null_type[rowset_size_];
|
|
|
- if(col.blob_)
|
|
|
- {
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLBindCol
|
|
|
- , rc
|
|
|
- , stmt_.native_statement_handle()
|
|
|
- , i + 1
|
|
|
- , col.ctype_
|
|
|
- , 0
|
|
|
- , 0
|
|
|
- , col.cbdata_);
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_.native_statement_handle(), SQL_HANDLE_STMT);
|
|
|
- }
|
|
|
- else
|
|
|
- {
|
|
|
- col.rowset_size_ = rowset_size_;
|
|
|
- col.pdata_ = new char[rowset_size_ * col.clen_];
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLBindCol
|
|
|
- , rc
|
|
|
- , stmt_.native_statement_handle()
|
|
|
- , i + 1 // ColumnNumber
|
|
|
- , col.ctype_ // TargetType
|
|
|
- , col.pdata_ // TargetValuePtr
|
|
|
- , col.clen_ // BufferLength
|
|
|
- , col.cbdata_); // StrLen_or_Ind
|
|
|
- if(!success(rc))
|
|
|
- NANODBC_THROW_DATABASE_ERROR(stmt_.native_statement_handle(), SQL_HANDLE_STMT);
|
|
|
- }
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
-private:
|
|
|
- statement stmt_;
|
|
|
- const long rowset_size_;
|
|
|
- SQLULEN row_count_;
|
|
|
- bound_column* bound_columns_;
|
|
|
- short bound_columns_size_;
|
|
|
- long rowset_position_;
|
|
|
- std::map<string_type, bound_column*> bound_columns_by_name_;
|
|
|
-};
|
|
|
-
|
|
|
-template<>
|
|
|
-inline void result::result_impl::get_ref_impl<date>(short column, date& result) const
|
|
|
-{
|
|
|
- bound_column& col = bound_columns_[column];
|
|
|
- switch(col.ctype_)
|
|
|
- {
|
|
|
- case SQL_C_DATE:
|
|
|
- result = *((date*)(col.pdata_ + rowset_position_ * col.clen_));
|
|
|
- return;
|
|
|
- case SQL_C_TIMESTAMP:
|
|
|
- {
|
|
|
- timestamp stamp = *( (timestamp*)( col.pdata_ + rowset_position_ * col.clen_ ) );
|
|
|
- date d = { stamp.year, stamp.month, stamp.day };
|
|
|
- result = d;
|
|
|
- return;
|
|
|
- }
|
|
|
- }
|
|
|
- throw type_incompatible_error();
|
|
|
-}
|
|
|
-
|
|
|
-template<>
|
|
|
-inline void result::result_impl::get_ref_impl<timestamp>(short column, timestamp& result) const
|
|
|
-{
|
|
|
- bound_column& col = bound_columns_[column];
|
|
|
- switch(col.ctype_)
|
|
|
- {
|
|
|
- case SQL_C_DATE:
|
|
|
- {
|
|
|
- date d = *((date*)(col.pdata_ + rowset_position_ * col.clen_));
|
|
|
- timestamp stamp = { d.year, d.month, d.day, 0, 0, 0, 0 };
|
|
|
- result = stamp;
|
|
|
- return;
|
|
|
- }
|
|
|
- case SQL_C_TIMESTAMP:
|
|
|
- result = *((timestamp*)(col.pdata_ + rowset_position_ * col.clen_));
|
|
|
- return;
|
|
|
- }
|
|
|
- throw type_incompatible_error();
|
|
|
-}
|
|
|
-
|
|
|
-template<>
|
|
|
-inline void result::result_impl::get_ref_impl<string_type>(short column, string_type& result) const
|
|
|
-{
|
|
|
- const bound_column& col = bound_columns_[column];
|
|
|
- const SQLULEN column_size = col.sqlsize_;
|
|
|
-
|
|
|
- switch(col.ctype_)
|
|
|
- {
|
|
|
- case SQL_C_CHAR:
|
|
|
- {
|
|
|
- if(col.blob_)
|
|
|
- {
|
|
|
- // Input is always std::string, while output may be std::string or std::wstring
|
|
|
- std::stringstream ss;
|
|
|
- char buff[1024] = {0};
|
|
|
- std::size_t buff_size = sizeof(buff);
|
|
|
- SQLLEN ValueLenOrInd;
|
|
|
- SQLRETURN rc;
|
|
|
- void* handle = native_statement_handle();
|
|
|
- do
|
|
|
- {
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLGetData
|
|
|
- , rc
|
|
|
- , handle // StatementHandle
|
|
|
- , column + 1 // Col_or_Param_Num
|
|
|
- , SQL_C_CHAR // TargetType
|
|
|
- , buff // TargetValuePtr
|
|
|
- , buff_size // BufferLength
|
|
|
- , &ValueLenOrInd); // StrLen_or_IndPtr
|
|
|
- if (ValueLenOrInd > 0)
|
|
|
- ss << buff;
|
|
|
- } while(rc > 0);
|
|
|
- convert(ss.str(), result);
|
|
|
- }
|
|
|
- else
|
|
|
- {
|
|
|
- const char* s = col.pdata_ + rowset_position_ * col.clen_;
|
|
|
- const std::string::size_type str_size = std::strlen(s);
|
|
|
- result.assign(s, s + str_size);
|
|
|
- }
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- case SQL_C_WCHAR:
|
|
|
- {
|
|
|
- if (col.blob_)
|
|
|
- {
|
|
|
- // Input is always std::wstring, output might be std::string or std::wstring.
|
|
|
- // Use a string builder to build the output string.
|
|
|
- std::wstringstream ss;
|
|
|
- wchar_t buffer[512] = {0};
|
|
|
- std::size_t buffer_size = sizeof(buffer);
|
|
|
- SQLLEN ValueLenOrInd;
|
|
|
- SQLRETURN rc;
|
|
|
- void* handle = native_statement_handle();
|
|
|
- do
|
|
|
- {
|
|
|
- NANODBC_CALL_RC(
|
|
|
- SQLGetData
|
|
|
- , rc
|
|
|
- , handle // StatementHandle
|
|
|
- , column + 1 // Col_or_Param_Num
|
|
|
- , SQL_C_WCHAR // TargetType
|
|
|
- , buffer // TargetValuePtr
|
|
|
- , buffer_size // BufferLength
|
|
|
- , &ValueLenOrInd); // StrLen_or_IndPtr
|
|
|
- if (ValueLenOrInd > 0)
|
|
|
- ss << buffer;
|
|
|
- } while (rc > 0);
|
|
|
- convert(ss.str(), result);
|
|
|
- }
|
|
|
- else
|
|
|
- {
|
|
|
- // Type is unicode in the database, convert if necessary
|
|
|
- const SQLWCHAR* s = reinterpret_cast<SQLWCHAR*>(col.pdata_ + rowset_position_ * col.clen_);
|
|
|
- const string_type::size_type str_size = *col.cbdata_ / sizeof(SQLWCHAR);
|
|
|
- std::wstring temp(s, s + str_size);
|
|
|
- convert(temp, result);
|
|
|
- }
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- case SQL_C_GUID:
|
|
|
- case SQL_C_BINARY:
|
|
|
- {
|
|
|
- if(col.blob_)
|
|
|
- throw std::runtime_error("blob not implemented yet");
|
|
|
- const char* s = col.pdata_ + rowset_position_ * col.clen_;
|
|
|
- result.assign(s, s + column_size);
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- case SQL_C_LONG:
|
|
|
- {
|
|
|
- result.resize(column_size);
|
|
|
- if(NANODBC_SNPRINTF(
|
|
|
- const_cast<string_type::value_type*>(result.data())
|
|
|
- , column_size
|
|
|
- , NANODBC_TEXT("%d")
|
|
|
- , *(int32_t*)(col.pdata_ + rowset_position_ * col.clen_)) == -1)
|
|
|
- throw type_incompatible_error();
|
|
|
- result.resize(NANODBC_STRLEN(result.c_str()));
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- case SQL_C_SBIGINT:
|
|
|
- {
|
|
|
- using namespace std; // in case intmax_t is in namespace std
|
|
|
- result.resize(column_size);
|
|
|
- if(NANODBC_SNPRINTF(
|
|
|
- const_cast<string_type::value_type*>(result.data())
|
|
|
- , column_size
|
|
|
- , NANODBC_TEXT("%jd")
|
|
|
- , (intmax_t) *(int64_t*)(col.pdata_ + rowset_position_ * col.clen_)) == -1)
|
|
|
- throw type_incompatible_error();
|
|
|
- result.resize(NANODBC_STRLEN(result.c_str()));
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- case SQL_C_FLOAT:
|
|
|
- {
|
|
|
- result.resize(column_size);
|
|
|
- if(NANODBC_SNPRINTF(
|
|
|
- const_cast<string_type::value_type*>(result.data())
|
|
|
- , column_size
|
|
|
- , NANODBC_TEXT("%f")
|
|
|
- , *(float*)(col.pdata_ + rowset_position_ * col.clen_)) == -1)
|
|
|
- throw type_incompatible_error();
|
|
|
- result.resize(NANODBC_STRLEN(result.c_str()));
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- case SQL_C_DOUBLE:
|
|
|
- {
|
|
|
- result.resize(column_size);
|
|
|
- if(NANODBC_SNPRINTF(
|
|
|
- const_cast<string_type::value_type*>(result.data())
|
|
|
- , column_size
|
|
|
- , NANODBC_TEXT("%lf")
|
|
|
- , *(double*)(col.pdata_ + rowset_position_ * col.clen_)) == -1)
|
|
|
- throw type_incompatible_error();
|
|
|
- result.resize(NANODBC_STRLEN(result.c_str()));
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- case SQL_C_DATE:
|
|
|
- {
|
|
|
- date d = *((date*)(col.pdata_ + rowset_position_ * col.clen_));
|
|
|
- std::tm st = { 0 };
|
|
|
- st.tm_year = d.year - 1900;
|
|
|
- st.tm_mon = d.month - 1;
|
|
|
- st.tm_mday = d.day;
|
|
|
- char* old_lc_time = std::setlocale(LC_TIME, NULL);
|
|
|
- std::setlocale(LC_TIME, "");
|
|
|
- string_type::value_type date_str[512];
|
|
|
- NANODBC_STRFTIME(
|
|
|
- date_str
|
|
|
- , sizeof(date_str) / sizeof(string_type::value_type)
|
|
|
- , NANODBC_TEXT("%Y-%m-%d")
|
|
|
- , &st);
|
|
|
- std::setlocale(LC_TIME, old_lc_time);
|
|
|
- result.assign(date_str);
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- case SQL_C_TIMESTAMP:
|
|
|
- {
|
|
|
- timestamp stamp = *((timestamp*)(col.pdata_ + rowset_position_ * col.clen_));
|
|
|
- std::tm st = { 0 };
|
|
|
- st.tm_year = stamp.year - 1900;
|
|
|
- st.tm_mon = stamp.month - 1;
|
|
|
- st.tm_mday = stamp.day;
|
|
|
- st.tm_hour = stamp.hour;
|
|
|
- st.tm_min = stamp.min;
|
|
|
- st.tm_sec = stamp.sec;
|
|
|
- char* old_lc_time = std::setlocale(LC_TIME, NULL);
|
|
|
- std::setlocale(LC_TIME, "");
|
|
|
- string_type::value_type date_str[512];
|
|
|
- NANODBC_STRFTIME(
|
|
|
- date_str
|
|
|
- , sizeof(date_str) / sizeof(string_type::value_type)
|
|
|
- , NANODBC_TEXT("%Y-%m-%d %H:%M:%S %z")
|
|
|
- , &st);
|
|
|
- std::setlocale(LC_TIME, old_lc_time);
|
|
|
- result.assign(date_str);
|
|
|
- return;
|
|
|
- }
|
|
|
- }
|
|
|
- throw type_incompatible_error();
|
|
|
-}
|
|
|
-
|
|
|
-template<class T>
|
|
|
-void result::result_impl::get_ref_impl(short column, T& result) const
|
|
|
-{
|
|
|
- bound_column& col = bound_columns_[column];
|
|
|
- using namespace std; // if int64_t is in std namespace (in c++11)
|
|
|
- const char* s = col.pdata_ + rowset_position_ * col.clen_;
|
|
|
- switch(col.ctype_)
|
|
|
- {
|
|
|
- case SQL_C_CHAR: result = (T)*(char*)(s); return;
|
|
|
- case SQL_C_SSHORT: result = (T)*(short*)(s); return;
|
|
|
- case SQL_C_USHORT: result = (T)*(unsigned short*)(s); return;
|
|
|
- case SQL_C_LONG: result = (T)*(int32_t*)(s); return;
|
|
|
- case SQL_C_SLONG: result = (T)*(int32_t*)(s); return;
|
|
|
- case SQL_C_ULONG: result = (T)*(uint32_t*)(s); return;
|
|
|
- case SQL_C_FLOAT: result = (T)*(float*)(s); return;
|
|
|
- case SQL_C_DOUBLE: result = (T)*(double*)(s); return;
|
|
|
- case SQL_C_SBIGINT: result = (T)*(int64_t*)(s); return;
|
|
|
- case SQL_C_UBIGINT: result = (T)*(uint64_t*)(s); return;
|
|
|
- }
|
|
|
- throw type_incompatible_error();
|
|
|
-}
|
|
|
-
|
|
|
-} // namespace nanodbc
|
|
|
-
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-// Free Functions
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-
|
|
|
-namespace nanodbc
|
|
|
-{
|
|
|
-
|
|
|
-result execute(connection& conn, const string_type& query, long batch_operations, long timeout)
|
|
|
-{
|
|
|
- class statement statement;
|
|
|
- return statement.execute_direct(conn, query, batch_operations, timeout);
|
|
|
-}
|
|
|
-
|
|
|
-void just_execute(connection& conn, const string_type& query, long batch_operations, long timeout) {
|
|
|
- class statement statement;
|
|
|
- statement.just_execute_direct(conn, query, batch_operations, timeout);
|
|
|
-}
|
|
|
-
|
|
|
-result execute(statement& stmt, long batch_operations)
|
|
|
-{
|
|
|
- return stmt.execute(batch_operations);
|
|
|
-}
|
|
|
-
|
|
|
-void just_execute(statement& stmt, long batch_operations)
|
|
|
-{
|
|
|
- return stmt.just_execute(batch_operations);
|
|
|
-}
|
|
|
-
|
|
|
-result transact(statement& stmt, long batch_operations)
|
|
|
-{
|
|
|
- class transaction transaction(stmt.connection());
|
|
|
- result rvalue = stmt.execute(batch_operations);
|
|
|
- transaction.commit();
|
|
|
- return rvalue;
|
|
|
-}
|
|
|
-
|
|
|
-void just_transact(statement& stmt, long batch_operations)
|
|
|
-{
|
|
|
- class transaction transaction(stmt.connection());
|
|
|
- stmt.just_execute(batch_operations);
|
|
|
- transaction.commit();
|
|
|
-}
|
|
|
-
|
|
|
-void prepare(statement& stmt, const string_type& query, long timeout)
|
|
|
-{
|
|
|
- stmt.prepare(stmt.connection(), query, timeout);
|
|
|
-}
|
|
|
-
|
|
|
-} // namespace nanodbc
|
|
|
-
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-// Pimpl Forwards: connection
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-
|
|
|
-namespace nanodbc
|
|
|
-{
|
|
|
-
|
|
|
-connection::connection()
|
|
|
-: impl_(new connection_impl())
|
|
|
-{
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-connection::connection(const connection& rhs)
|
|
|
-: impl_(rhs.impl_)
|
|
|
-{
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-connection& connection::operator=(connection rhs)
|
|
|
-{
|
|
|
- swap(rhs);
|
|
|
- return *this;
|
|
|
-}
|
|
|
-
|
|
|
-void connection::swap(connection& rhs) noexcept
|
|
|
-{
|
|
|
- using std::swap;
|
|
|
- swap(impl_, rhs.impl_);
|
|
|
-}
|
|
|
-
|
|
|
-connection::connection(
|
|
|
- const string_type& dsn
|
|
|
- , const string_type& user
|
|
|
- , const string_type& pass
|
|
|
- , long timeout)
|
|
|
-: impl_(new connection_impl(dsn, user, pass, timeout))
|
|
|
-{
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-connection::connection(const string_type& connection_string, long timeout)
|
|
|
-: impl_(new connection_impl(connection_string, timeout))
|
|
|
-{
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-connection::~connection() noexcept
|
|
|
-{
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-void connection::connect(
|
|
|
- const string_type& dsn
|
|
|
- , const string_type& user
|
|
|
- , const string_type& pass
|
|
|
- , long timeout)
|
|
|
-{
|
|
|
- impl_->connect(dsn, user, pass, timeout);
|
|
|
-}
|
|
|
-
|
|
|
-void connection::connect(const string_type& connection_string, long timeout)
|
|
|
-{
|
|
|
- impl_->connect(connection_string, timeout);
|
|
|
-}
|
|
|
-
|
|
|
-bool connection::connected() const
|
|
|
-{
|
|
|
- return impl_->connected();
|
|
|
-}
|
|
|
-
|
|
|
-void connection::disconnect()
|
|
|
-{
|
|
|
- impl_->disconnect();
|
|
|
-}
|
|
|
-
|
|
|
-std::size_t connection::transactions() const
|
|
|
-{
|
|
|
- return impl_->transactions();
|
|
|
-}
|
|
|
-
|
|
|
-void* connection::native_dbc_handle() const
|
|
|
-{
|
|
|
- return impl_->native_dbc_handle();
|
|
|
-}
|
|
|
-
|
|
|
-void* connection::native_env_handle() const
|
|
|
-{
|
|
|
- return impl_->native_env_handle();
|
|
|
-}
|
|
|
-
|
|
|
-string_type connection::driver_name() const
|
|
|
-{
|
|
|
- return impl_->driver_name();
|
|
|
-}
|
|
|
-
|
|
|
-std::size_t connection::ref_transaction()
|
|
|
-{
|
|
|
- return impl_->ref_transaction();
|
|
|
-}
|
|
|
-
|
|
|
-std::size_t connection::unref_transaction()
|
|
|
-{
|
|
|
- return impl_->unref_transaction();
|
|
|
-}
|
|
|
-
|
|
|
-bool connection::rollback() const
|
|
|
-{
|
|
|
- return impl_->rollback();
|
|
|
-}
|
|
|
-
|
|
|
-void connection::rollback(bool onoff)
|
|
|
-{
|
|
|
- impl_->rollback(onoff);
|
|
|
-}
|
|
|
-
|
|
|
-} // namespace nanodbc
|
|
|
-
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-// Pimpl Forwards: transaction
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-
|
|
|
-namespace nanodbc
|
|
|
-{
|
|
|
-
|
|
|
-transaction::transaction(const class connection& conn)
|
|
|
-: impl_(new transaction_impl(conn))
|
|
|
-{
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-transaction::transaction(const transaction& rhs)
|
|
|
-: impl_(rhs.impl_)
|
|
|
-{
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-transaction& transaction::operator=(transaction rhs)
|
|
|
-{
|
|
|
- swap(rhs);
|
|
|
- return *this;
|
|
|
-}
|
|
|
-
|
|
|
-void transaction::swap(transaction& rhs) noexcept
|
|
|
-{
|
|
|
- using std::swap;
|
|
|
- swap(impl_, rhs.impl_);
|
|
|
-}
|
|
|
-
|
|
|
-transaction::~transaction() noexcept
|
|
|
-{
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-void transaction::commit()
|
|
|
-{
|
|
|
- impl_->commit();
|
|
|
-}
|
|
|
-
|
|
|
-void transaction::rollback() noexcept
|
|
|
-{
|
|
|
- impl_->rollback();
|
|
|
-}
|
|
|
-
|
|
|
-class connection& transaction::connection()
|
|
|
-{
|
|
|
- return impl_->connection();
|
|
|
-}
|
|
|
-
|
|
|
-const class connection& transaction::connection() const
|
|
|
-{
|
|
|
- return impl_->connection();
|
|
|
-}
|
|
|
-
|
|
|
-transaction::operator class connection&()
|
|
|
-{
|
|
|
- return impl_->connection();
|
|
|
-}
|
|
|
-
|
|
|
-transaction::operator const class connection&() const
|
|
|
-{
|
|
|
- return impl_->connection();
|
|
|
-}
|
|
|
-
|
|
|
-} // namespace nanodbc
|
|
|
-
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-// Pimpl Forwards: statement
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-
|
|
|
-namespace nanodbc
|
|
|
-{
|
|
|
-
|
|
|
-statement::statement()
|
|
|
-: impl_(new statement_impl())
|
|
|
-{
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-statement::statement(class connection& conn)
|
|
|
-: impl_(new statement_impl(conn))
|
|
|
-{
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-statement::statement(class connection& conn, const string_type& query, long timeout)
|
|
|
-: impl_(new statement_impl(conn, query, timeout))
|
|
|
-{
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-statement::statement(const statement& rhs)
|
|
|
-: impl_(rhs.impl_)
|
|
|
-{
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-statement& statement::operator=(statement rhs)
|
|
|
-{
|
|
|
- swap(rhs);
|
|
|
- return *this;
|
|
|
-}
|
|
|
-
|
|
|
-void statement::swap(statement& rhs) noexcept
|
|
|
-{
|
|
|
- using std::swap;
|
|
|
- swap(impl_, rhs.impl_);
|
|
|
-}
|
|
|
-
|
|
|
-statement::~statement() noexcept
|
|
|
-{
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-void statement::open(class connection& conn)
|
|
|
-{
|
|
|
- impl_->open(conn);
|
|
|
-}
|
|
|
-
|
|
|
-bool statement::open() const
|
|
|
-{
|
|
|
- return impl_->open();
|
|
|
-}
|
|
|
-
|
|
|
-bool statement::connected() const
|
|
|
-{
|
|
|
- return impl_->connected();
|
|
|
-}
|
|
|
-
|
|
|
-const class connection& statement::connection() const
|
|
|
-{
|
|
|
- return impl_->connection();
|
|
|
-}
|
|
|
-
|
|
|
-class connection& statement::connection()
|
|
|
-{
|
|
|
- return impl_->connection();
|
|
|
-}
|
|
|
-
|
|
|
-void* statement::native_statement_handle() const
|
|
|
-{
|
|
|
- return impl_->native_statement_handle();
|
|
|
-}
|
|
|
-
|
|
|
-void statement::close()
|
|
|
-{
|
|
|
- impl_->close();
|
|
|
-}
|
|
|
-
|
|
|
-void statement::cancel()
|
|
|
-{
|
|
|
- impl_->cancel();
|
|
|
-}
|
|
|
-
|
|
|
-void statement::prepare(class connection& conn, const string_type& query, long timeout)
|
|
|
-{
|
|
|
- impl_->prepare(conn, query, timeout);
|
|
|
-}
|
|
|
-
|
|
|
-void statement::prepare(const string_type& query, long timeout)
|
|
|
-{
|
|
|
- impl_->prepare(query, timeout);
|
|
|
-}
|
|
|
-
|
|
|
-void statement::timeout(long timeout)
|
|
|
-{
|
|
|
- impl_->timeout(timeout);
|
|
|
-}
|
|
|
-
|
|
|
-result statement::execute_direct(
|
|
|
- class connection& conn
|
|
|
- , const string_type& query
|
|
|
- , long batch_operations
|
|
|
- , long timeout)
|
|
|
-{
|
|
|
- return impl_->execute_direct(conn, query, batch_operations, timeout, *this);
|
|
|
-}
|
|
|
-
|
|
|
-void statement::just_execute_direct(
|
|
|
- class connection& conn
|
|
|
- , const string_type& query
|
|
|
- , long batch_operations
|
|
|
- , long timeout)
|
|
|
-{
|
|
|
- impl_->just_execute_direct(conn, query, batch_operations, timeout, *this);
|
|
|
-}
|
|
|
-
|
|
|
-result statement::execute(long batch_operations, long timeout)
|
|
|
-{
|
|
|
- return impl_->execute(batch_operations, timeout, *this);
|
|
|
-}
|
|
|
-
|
|
|
-void statement::just_execute(long batch_operations, long timeout)
|
|
|
-{
|
|
|
- impl_->just_execute(batch_operations, timeout, *this);
|
|
|
-}
|
|
|
-
|
|
|
-result statement::procedure_columns(
|
|
|
- const string_type& catalog
|
|
|
- , const string_type& schema
|
|
|
- , const string_type& procedure
|
|
|
- , const string_type& column)
|
|
|
-{
|
|
|
- return impl_->procedure_columns(catalog, schema, procedure, column, *this);
|
|
|
-}
|
|
|
-
|
|
|
-long statement::affected_rows() const
|
|
|
-{
|
|
|
- return impl_->affected_rows();
|
|
|
-}
|
|
|
-
|
|
|
-short statement::columns() const
|
|
|
-{
|
|
|
- return impl_->columns();
|
|
|
-}
|
|
|
-
|
|
|
-void statement::reset_parameters() noexcept
|
|
|
-{
|
|
|
- impl_->reset_parameters();
|
|
|
-}
|
|
|
-
|
|
|
-unsigned long statement::parameter_size(short param) const
|
|
|
-{
|
|
|
- return impl_->parameter_size(param);
|
|
|
-}
|
|
|
-
|
|
|
-// We need to instantiate each form of bind() for each of our supported data types.
|
|
|
-#define NANODBC_INSTANTIATE_BINDS(type) \
|
|
|
- template void statement::bind(short, const type*, param_direction); /* 1-ary */ \
|
|
|
- template void statement::bind(short, const type*, std::size_t, param_direction); /* n-ary */ \
|
|
|
- template void statement::bind(short, const type*, std::size_t, const type*, param_direction); /* n-ary, sentry */ \
|
|
|
- template void statement::bind(short, const type*, std::size_t, const bool*, param_direction) /* n-ary, flags */ \
|
|
|
- /**/
|
|
|
-
|
|
|
-// The following are the only supported instantiations of statement::bind().
|
|
|
-NANODBC_INSTANTIATE_BINDS(string_type::value_type);
|
|
|
-NANODBC_INSTANTIATE_BINDS(short);
|
|
|
-NANODBC_INSTANTIATE_BINDS(unsigned short);
|
|
|
-NANODBC_INSTANTIATE_BINDS(int32_t);
|
|
|
-NANODBC_INSTANTIATE_BINDS(uint32_t);
|
|
|
-NANODBC_INSTANTIATE_BINDS(int64_t);
|
|
|
-NANODBC_INSTANTIATE_BINDS(uint64_t);
|
|
|
-NANODBC_INSTANTIATE_BINDS(float);
|
|
|
-NANODBC_INSTANTIATE_BINDS(double);
|
|
|
-NANODBC_INSTANTIATE_BINDS(date);
|
|
|
-NANODBC_INSTANTIATE_BINDS(timestamp);
|
|
|
-
|
|
|
-#undef NANODBC_INSTANTIATE_BINDS
|
|
|
-
|
|
|
-template<class T>
|
|
|
-void statement::bind(short param, const T* value, param_direction direction)
|
|
|
-{
|
|
|
- impl_->bind(param, value, 1, direction);
|
|
|
-}
|
|
|
-
|
|
|
-template<class T>
|
|
|
-void statement::bind(short param, const T* values, std::size_t elements, param_direction direction)
|
|
|
-{
|
|
|
- impl_->bind(param, values, elements, direction);
|
|
|
-}
|
|
|
-
|
|
|
-template<class T>
|
|
|
-void statement::bind(
|
|
|
- short param
|
|
|
- , const T* values
|
|
|
- , std::size_t elements
|
|
|
- , const T* null_sentry
|
|
|
- , param_direction direction)
|
|
|
-{
|
|
|
- impl_->bind(param, values, elements, 0, null_sentry, direction);
|
|
|
-}
|
|
|
-
|
|
|
-template<class T>
|
|
|
-void statement::bind(
|
|
|
- short param
|
|
|
- , const T* values
|
|
|
- , std::size_t elements
|
|
|
- , const bool* nulls
|
|
|
- , param_direction direction)
|
|
|
-{
|
|
|
- impl_->bind(param, values, elements, nulls, (T*)0, direction);
|
|
|
-}
|
|
|
-
|
|
|
-void statement::bind_strings(
|
|
|
- short param
|
|
|
- , const string_type::value_type* values
|
|
|
- , std::size_t length
|
|
|
- , std::size_t elements
|
|
|
- , param_direction direction)
|
|
|
-{
|
|
|
- impl_->bind_strings(param, values, length, elements, direction);
|
|
|
-}
|
|
|
-
|
|
|
-void statement::bind_strings(
|
|
|
- short param
|
|
|
- , const string_type::value_type* values
|
|
|
- , std::size_t length
|
|
|
- , std::size_t elements
|
|
|
- , const string_type::value_type* null_sentry
|
|
|
- , param_direction direction)
|
|
|
-{
|
|
|
- impl_->bind_strings(param, values, length, elements, (bool*)0, null_sentry, direction);
|
|
|
-}
|
|
|
-
|
|
|
-void statement::bind_strings(
|
|
|
- short param
|
|
|
- , const string_type::value_type* values
|
|
|
- , std::size_t length
|
|
|
- , std::size_t elements
|
|
|
- , const bool* nulls
|
|
|
- , param_direction direction)
|
|
|
-{
|
|
|
- impl_->bind_strings(
|
|
|
- param
|
|
|
- , values
|
|
|
- , length
|
|
|
- , elements
|
|
|
- , nulls
|
|
|
- , (string_type::value_type*)0
|
|
|
- , direction);
|
|
|
-}
|
|
|
-
|
|
|
-void statement::bind_null(short param, std::size_t elements)
|
|
|
-{
|
|
|
- impl_->bind_null(param, elements);
|
|
|
-}
|
|
|
-
|
|
|
-} // namespace nanodbc
|
|
|
-
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-// Pimpl Forwards: result
|
|
|
-///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
-
|
|
|
-namespace nanodbc
|
|
|
-{
|
|
|
-
|
|
|
-result::result()
|
|
|
-: impl_()
|
|
|
-{
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-result::~result() noexcept
|
|
|
-{
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-result::result(statement stmt, long rowset_size)
|
|
|
-: impl_(new result_impl(stmt, rowset_size))
|
|
|
-{
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-result::result(const result& rhs)
|
|
|
-: impl_(rhs.impl_)
|
|
|
-{
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-result& result::operator=(result rhs)
|
|
|
-{
|
|
|
- swap(rhs);
|
|
|
- return *this;
|
|
|
-}
|
|
|
-
|
|
|
-void result::swap(result& rhs) noexcept
|
|
|
-{
|
|
|
- using std::swap;
|
|
|
- swap(impl_, rhs.impl_);
|
|
|
-}
|
|
|
-
|
|
|
-void* result::native_statement_handle() const
|
|
|
-{
|
|
|
- return impl_->native_statement_handle();
|
|
|
-}
|
|
|
-
|
|
|
-long result::rowset_size() const noexcept
|
|
|
-{
|
|
|
- return impl_->rowset_size();
|
|
|
-}
|
|
|
-
|
|
|
-long result::affected_rows() const
|
|
|
-{
|
|
|
- return impl_->affected_rows();
|
|
|
-}
|
|
|
-
|
|
|
-long result::rows() const noexcept
|
|
|
-{
|
|
|
- return impl_->rows();
|
|
|
-}
|
|
|
-
|
|
|
-short result::columns() const
|
|
|
-{
|
|
|
- return impl_->columns();
|
|
|
-}
|
|
|
-
|
|
|
-bool result::first()
|
|
|
-{
|
|
|
- return impl_->first();
|
|
|
-}
|
|
|
-
|
|
|
-bool result::last()
|
|
|
-{
|
|
|
- return impl_->last();
|
|
|
-}
|
|
|
-
|
|
|
-bool result::next()
|
|
|
-{
|
|
|
- return impl_->next();
|
|
|
-}
|
|
|
-
|
|
|
-bool result::prior()
|
|
|
-{
|
|
|
- return impl_->prior();
|
|
|
-}
|
|
|
-
|
|
|
-bool result::move(long row)
|
|
|
-{
|
|
|
- return impl_->move(row);
|
|
|
-}
|
|
|
-
|
|
|
-bool result::skip(long rows)
|
|
|
-{
|
|
|
- return impl_->skip(rows);
|
|
|
-}
|
|
|
-
|
|
|
-unsigned long result::position() const
|
|
|
-{
|
|
|
- return impl_->position();
|
|
|
-}
|
|
|
-
|
|
|
-bool result::end() const noexcept
|
|
|
-{
|
|
|
- return impl_->end();
|
|
|
-}
|
|
|
-
|
|
|
-bool result::is_null(short column) const
|
|
|
-{
|
|
|
- return impl_->is_null(column);
|
|
|
-}
|
|
|
-
|
|
|
-bool result::is_null(const string_type& column_name) const
|
|
|
-{
|
|
|
- return impl_->is_null(column_name);
|
|
|
-}
|
|
|
-
|
|
|
-string_type result::column_name(short column) const
|
|
|
-{
|
|
|
- return impl_->column_name(column);
|
|
|
-}
|
|
|
-
|
|
|
-long result::column_size(short column) const
|
|
|
-{
|
|
|
- return impl_->column_size(column);
|
|
|
-}
|
|
|
-
|
|
|
-short result::column(const string_type& column_name) const
|
|
|
-{
|
|
|
- return impl_->column(column_name);
|
|
|
-}
|
|
|
-
|
|
|
-int result::column_datatype(short column) const
|
|
|
-{
|
|
|
- return impl_->column_datatype(column);
|
|
|
-}
|
|
|
-
|
|
|
-int result::column_datatype(const string_type& column_name) const
|
|
|
-{
|
|
|
- return impl_->column_datatype(column_name);
|
|
|
-}
|
|
|
-
|
|
|
-int result::column_c_datatype(short column) const
|
|
|
-{
|
|
|
- return impl_->column_c_datatype(column);
|
|
|
-}
|
|
|
-
|
|
|
-int result::column_c_datatype(const string_type& column_name) const
|
|
|
-{
|
|
|
- return impl_->column_c_datatype(column_name);
|
|
|
-}
|
|
|
-
|
|
|
-bool result::next_result()
|
|
|
-{
|
|
|
- return impl_->next_result();
|
|
|
-}
|
|
|
-
|
|
|
-template<class T>
|
|
|
-void result::get_ref(short column, T& result) const
|
|
|
-{
|
|
|
- return impl_->get_ref<T>(column, result);
|
|
|
-}
|
|
|
-
|
|
|
-template<class T>
|
|
|
-void result::get_ref(short column, const T& fallback, T& result) const
|
|
|
-{
|
|
|
- return impl_->get_ref<T>(column, fallback, result);
|
|
|
-}
|
|
|
-
|
|
|
-template<class T>
|
|
|
-void result::get_ref(const string_type& column_name, T& result) const
|
|
|
-{
|
|
|
- return impl_->get_ref<T>(column_name, result);
|
|
|
-}
|
|
|
-
|
|
|
-template<class T>
|
|
|
-void result::get_ref(const string_type& column_name, const T& fallback, T& result) const
|
|
|
-{
|
|
|
- return impl_->get_ref<T>(column_name, fallback, result);
|
|
|
-}
|
|
|
-
|
|
|
-template<class T>
|
|
|
-T result::get(short column) const
|
|
|
-{
|
|
|
- return impl_->get<T>(column);
|
|
|
-}
|
|
|
-
|
|
|
-template<class T>
|
|
|
-T result::get(short column, const T& fallback) const
|
|
|
-{
|
|
|
- return impl_->get<T>(column, fallback);
|
|
|
-}
|
|
|
-
|
|
|
-template<class T>
|
|
|
-T result::get(const string_type& column_name) const
|
|
|
-{
|
|
|
- return impl_->get<T>(column_name);
|
|
|
-}
|
|
|
-
|
|
|
-template<class T>
|
|
|
-T result::get(const string_type& column_name, const T& fallback) const
|
|
|
-{
|
|
|
- return impl_->get<T>(column_name, fallback);
|
|
|
-}
|
|
|
-
|
|
|
-result::operator bool() const
|
|
|
-{
|
|
|
- return static_cast<bool>(impl_);
|
|
|
-}
|
|
|
-
|
|
|
-// The following are the only supported instantiations of result::get_ref().
|
|
|
-template void result::get_ref(short, string_type::value_type&) const;
|
|
|
-template void result::get_ref(short, short&) const;
|
|
|
-template void result::get_ref(short, unsigned short&) const;
|
|
|
-template void result::get_ref(short, int32_t&) const;
|
|
|
-template void result::get_ref(short, uint32_t&) const;
|
|
|
-template void result::get_ref(short, int64_t&) const;
|
|
|
-template void result::get_ref(short, uint64_t&) const;
|
|
|
-template void result::get_ref(short, float&) const;
|
|
|
-template void result::get_ref(short, double&) const;
|
|
|
-template void result::get_ref(short, string_type&) const;
|
|
|
-template void result::get_ref(short, date&) const;
|
|
|
-template void result::get_ref(short, timestamp&) const;
|
|
|
-
|
|
|
-template void result::get_ref(const string_type&, string_type::value_type&) const;
|
|
|
-template void result::get_ref(const string_type&, short&) const;
|
|
|
-template void result::get_ref(const string_type&, unsigned short&) const;
|
|
|
-template void result::get_ref(const string_type&, int32_t&) const;
|
|
|
-template void result::get_ref(const string_type&, uint32_t&) const;
|
|
|
-template void result::get_ref(const string_type&, int64_t&) const;
|
|
|
-template void result::get_ref(const string_type&, uint64_t&) const;
|
|
|
-template void result::get_ref(const string_type&, float&) const;
|
|
|
-template void result::get_ref(const string_type&, double&) const;
|
|
|
-template void result::get_ref(const string_type&, string_type&) const;
|
|
|
-template void result::get_ref(const string_type&, date&) const;
|
|
|
-template void result::get_ref(const string_type&, timestamp&) const;
|
|
|
-
|
|
|
-// The following are the only supported instantiations of result::get_ref() with fallback.
|
|
|
-template void result::get_ref(short, const string_type::value_type&, string_type::value_type&) const;
|
|
|
-template void result::get_ref(short, const short&, short&) const;
|
|
|
-template void result::get_ref(short, const unsigned short&, unsigned short&) const;
|
|
|
-template void result::get_ref(short, const int32_t&, int32_t&) const;
|
|
|
-template void result::get_ref(short, const uint32_t&, uint32_t&) const;
|
|
|
-template void result::get_ref(short, const int64_t&, int64_t&) const;
|
|
|
-template void result::get_ref(short, const uint64_t&, uint64_t&) const;
|
|
|
-template void result::get_ref(short, const float&, float&) const;
|
|
|
-template void result::get_ref(short, const double&, double&) const;
|
|
|
-template void result::get_ref(short, const string_type&, string_type&) const;
|
|
|
-template void result::get_ref(short, const date&, date&) const;
|
|
|
-template void result::get_ref(short, const timestamp&, timestamp&) const;
|
|
|
-
|
|
|
-template void result::get_ref(const string_type&, const string_type::value_type&, string_type::value_type&) const;
|
|
|
-template void result::get_ref(const string_type&, const short&, short&) const;
|
|
|
-template void result::get_ref(const string_type&, const unsigned short&, unsigned short&) const;
|
|
|
-template void result::get_ref(const string_type&, const int32_t&, int32_t&) const;
|
|
|
-template void result::get_ref(const string_type&, const uint32_t&, uint32_t&) const;
|
|
|
-template void result::get_ref(const string_type&, const int64_t&, int64_t&) const;
|
|
|
-template void result::get_ref(const string_type&, const uint64_t&, uint64_t&) const;
|
|
|
-template void result::get_ref(const string_type&, const float&, float&) const;
|
|
|
-template void result::get_ref(const string_type&, const double&, double&) const;
|
|
|
-template void result::get_ref(const string_type&, const string_type&, string_type&) const;
|
|
|
-template void result::get_ref(const string_type&, const date&, date&) const;
|
|
|
-template void result::get_ref(const string_type&, const timestamp&, timestamp&) const;
|
|
|
-
|
|
|
-// The following are the only supported instantiations of result::get().
|
|
|
-template string_type::value_type result::get(short) const;
|
|
|
-template short result::get(short) const;
|
|
|
-template unsigned short result::get(short) const;
|
|
|
-template int32_t result::get(short) const;
|
|
|
-template uint32_t result::get(short) const;
|
|
|
-template int64_t result::get(short) const;
|
|
|
-template uint64_t result::get(short) const;
|
|
|
-template float result::get(short) const;
|
|
|
-template double result::get(short) const;
|
|
|
-template string_type result::get(short) const;
|
|
|
-template date result::get(short) const;
|
|
|
-template timestamp result::get(short) const;
|
|
|
-
|
|
|
-template string_type::value_type result::get(const string_type&) const;
|
|
|
-template short result::get(const string_type&) const;
|
|
|
-template unsigned short result::get(const string_type&) const;
|
|
|
-template int32_t result::get(const string_type&) const;
|
|
|
-template uint32_t result::get(const string_type&) const;
|
|
|
-template int64_t result::get(const string_type&) const;
|
|
|
-template uint64_t result::get(const string_type&) const;
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-template float result::get(const string_type&) const;
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-template double result::get(const string_type&) const;
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-template string_type result::get(const string_type&) const;
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-template date result::get(const string_type&) const;
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-template timestamp result::get(const string_type&) const;
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-
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-// The following are the only supported instantiations of result::get() with fallback.
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-template string_type::value_type result::get(short, const string_type::value_type&) const;
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-template short result::get(short, const short&) const;
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-template unsigned short result::get(short, const unsigned short&) const;
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-template int32_t result::get(short, const int32_t&) const;
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-template uint32_t result::get(short, const uint32_t&) const;
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-template int64_t result::get(short, const int64_t&) const;
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-template uint64_t result::get(short, const uint64_t&) const;
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-template float result::get(short, const float&) const;
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-template double result::get(short, const double&) const;
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-template string_type result::get(short, const string_type&) const;
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-template date result::get(short, const date&) const;
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-template timestamp result::get(short, const timestamp&) const;
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-
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-template string_type::value_type result::get(const string_type&, const string_type::value_type&) const;
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-template short result::get(const string_type&, const short&) const;
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-template unsigned short result::get(const string_type&, const unsigned short&) const;
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-template int32_t result::get(const string_type&, const int32_t&) const;
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-template uint32_t result::get(const string_type&, const uint32_t&) const;
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-template int64_t result::get(const string_type&, const int64_t&) const;
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-template uint64_t result::get(const string_type&, const uint64_t&) const;
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-template float result::get(const string_type&, const float&) const;
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-template double result::get(const string_type&, const double&) const;
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-template string_type result::get(const string_type&, const string_type&) const;
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-template date result::get(const string_type&, const date&) const;
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-template timestamp result::get(const string_type&, const timestamp&) const;
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-
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-} // namespace nanodbc
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-
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-#undef NANODBC_THROW_DATABASE_ERROR
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-#undef NANODBC_STRINGIZE
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-#undef NANODBC_STRINGIZE_I
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-#undef NANODBC_CALL_RC
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-#undef NANODBC_CALL
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-
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-#endif // DOXYGEN
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Yao Wei Tjong 姚伟忠