What is the correct way of QSqlDatabase & QSqlQuery?
QSqlDatabase and QSqlQuery are lightweight wrappers around concrete implementations, so your first example is fine. If you provide a name when adding the connection, or use the default database, …
QSqldatabase "correct" usage - Qt Forum
Feb 14, 2025 · I've been using QSqlDatabase as a member of a class in many small programs that I develop for personal projects, like class DbManager { DbManager(); ...
QSqlDatabase: QMYSQL driver not loaded - Qt Forum
Jan 18, 2025 · QSqlDatabase: QMYSQL driver not loaded Unsolved General and Desktop 20 Posts 5 Posters 4.1k Views 2 Watching Oldest to Newest
Correctly using QSqlDatabase in multi-threaded programs
May 13, 2017 · The QSqlDatabase class represents a connection to a database. The QSqlDatabase class provides an interface for accessing a database through a connection. An instance of …
Как работать с QSqlDatabase пример ( QSqlDatabase example)
Jan 9, 2023 · } QSqlDatabase::removeDatabase("NAME1"); } Это самый локаничный и правильный пример по использованию QSqlDatabase, он позволит вам делать даже несколько …
c++ - Handling QSqlDatabase connections - Stack Overflow
Aug 25, 2014 · What is the correct way to handle connections for QSqlDatabase? In my program I am doing it this way:
QSqlDatabase: How to avoid 'qt_sql_default_connection' still in use ...
Mar 17, 2019 · If you need to access an existing QSqlDatabase, it should be accessed with database (). If you chose to have a QSqlDatabase member variable, this needs to be deleted before the …
QSqlDatabase: QMYSQL driver not loaded - Qt Forum
Jul 13, 2021 · QSqlDatabase: QMYSQL driver not loaded QSqlDatabase: available drivers: QSQLITE QMYSQL QMYSQL3 QODBC QODBC3 QPSQL QPSQL7 I launch the application with exactly the …
QSqlDatabase Connecting to Multiple Databases - Stack Overflow
Oct 16, 2014 · The database used for the application is declared as a static QSqlDatabase in a namespace to create a global effect, so everyone can access it, that was a previous programmer, …
error: QSqlDatabase: No such file or directory - Qt Forum
Jul 10, 2023 · Hello, All! Compiled Qt6 from source codes (obtained only in release mode), then compiled QtCreator in release mode. QtCreator started, but at the same time ...