Generally, how to save application data?
In a binary file, or a database? In other words, which structure can I use?
If there is a database table, how can I select data from it?
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Generally, how to save application data?
In a binary file, or a database? In other words, which structure can I use?
If there is a database table, how can I select data from it?
For simple applications settings, use
QSettings– it provides persistent platform-independent application settings.For more complex data, you might want to have a look at
QSqlDatabase, several databases are supported, including SQLite. To select data or, more generally, to make an SQL query, have a look atQSqlQuery.