AdFrame Engine - Persistence framework for linking of relational and legacy databases/datasources to cross-platform C++ programming.freeodbc++ - A C++ library for accessing SQL databases. Designed with standards in mind, so it provides a subset of the well-known JDBC 2.0 and runs on top of ODBC. [Open Source, LGPL]
MetaKit structured storage - Highly portable, lightweight database manager, usable from several languages.
ODBC Broker - C/C++ library to access ODBC data sources with only a few lines of code. Now, make dynamic database engines to access any ODBC data sources without knowing about ODBC!
KDBM - C++ Interface for the GNU Database Library (gdbm).
MySQL++ - A C++ API for MySQL. Tries to make working with queries as easy as working with other STL containers.
AccessLog - A C++ wrapper to give an XBase fashion to the Berkeley DB library.
