[QT]Push button-no action

[nqn]

Maybe i write wrong. When i run my program nth happend when i clicked on button. When i uncomment in
Osm_Sqlite::Create_clean_database() :

section:

query.exec("select * from tb11");
while (query.next())
{
QString name = query.value(0).toString();
qDebug() << name;
}

i should have sth print but nth happen

[tbscope]

If you use the database like this:

QSqlDatabase::database().transaction();

QSqlDatabase::database().transaction();

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You need to set a connection name.

Otherwise, try:

db.transaction();

db.transaction();

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And the same with commit();