Qt C++ how to properly close sqlite db connection?

Question

Qt

I write software that can work with different databases.
How to properly close the connection with an already connected database when choosing another one through the file dialog?

Answer 1

{
QSqlDatabase m_dataBase=QSqlDatabase::addDatabase("QSQLITE", "Con434");
m_dataBase.open();
...
m_dataBase.close();
}
QSqlDatabase::removeDatabase("Con434");

Con434 - an arbitrary name, you need to have a different one if you have several connections to the database.