QsT SQL Tools - ORM system based on Qt 4.6.0 (and higher) to improve programming databases with Qt. QST has a little functionality to make simple SELECT, INSERT, UPDATE, DELETE and EXEC queries. It uses PostgreSQL but can be ported for other language
Portable C++ RDBMS client library. Provides C++ API and isolates application from low-level DB interactions. Manages database connections, builds and executes SQL statements, parses query results, etc. MySQL, MSSQL, Oracle, SQLite drivers available.