Which Database is best for QT GUI application?

[vinod]

I want to use database for storing information in a QT GUI application. Which is best RDBMS with QT

[mcosta]

Hi and welcome to devnet,

I used successfully PostgreSQL, MySQL, ORACLE and SQLite plugins.
The choice depends of your requirements and constraints.

If you can run a local connection (no network connection) and you don't need concurrent access you can go to SQLite.
For general purpose applications I suggest PostgreSQL (the licensing is the most flexible).

ORACLE is IMO the BEST RDBMS but is expensive.