QTableView sorting

[Everall]

model->setQuery( "SELECT field1,field2 FROM table1" );

model->setQuery( "SELECT field1,field2 FROM table1" );

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You are using not more than 1 table so QSqlTableModel fits your needs?

instead of
QSqlQueryModel *model = new QSqlQueryModel(tableView);
you could use
QSqlTableModel *model = new QSqlTableModel(tableView);
which has
void QSqlTableModel::sort ( int column, Qt::SortOrder order ) [virtual]
implemented

Cheers