This is the Database directory of the Free Component Library.

All base classes are in the db unit, the dbconst unit contains the 
used resourcestrings.

memds
  contains a dataset-class in memory which can be read from, and
  written to a stream

sqldb
  contains a framework to work with several SQL-based databases
  as Interbase, Firebird, MySQL, ODBC and Oracle

dbase
  contains the tDbf components, to work with DBASE and FoxPro
  file-based databases

sdf
  contains a dataset class to use text files directly as a
  database. That could be fixed-size, or limited (SDF)

sqlite
  contains datases classes to use sqlite and sqlite3

unmaintained
  contains some obsolete units which were replaced by better
  alternatives, or which are old tests which are not needed
  anymore

Enjoy !

Joost van der Sluis.