Qt 中SQLITE 的Feature

QSqlDriver::DriverFeature

SQLITE

值	常量	是否支援
QSqlDriver::Transactions	true
1	QSqlDriver::QuerySize	false
2	QSqlDriver::BLOB	true
3	QSqlDriver::Unicode	true
4	QSqlDriver::PreparedQueries	true
5	QSqlDriver::NamedPlaceholders	true
6	QSqlDriver::PositionalPlaceholders	true
7	QSqlDriver::LastInsertId	true
8	QSqlDriver::BatchOperations	false
9	QSqlDriver::SimpleLocking	true
10	QSqlDriver::LowPrecisionNumbers	true
11	QSqlDriver::EventNotifications	true
12	QSqlDriver::FinishQuery	true
13	QSqlDriver::MultipleResultSets	false
14	QSqlDriver::CancelQuery	false

qDebug()<<db_sqlite.driver()->hasFeature(QSqlDriver::Transactions);            //true  
qDebug()<<db_sqlite.driver()->hasFeature(QSqlDriver::QuerySize);               //false 
qDebug()<<db_sqlite.driver()->hasFeature(QSqlDriver::BLOB);                    //true  
qDebug()<<db_sqlite.driver()->hasFeature(QSqlDriver::Unicode);                 //true  
qDebug()<<db_sqlite.driver()->hasFeature(QSqlDriver::PreparedQueries);         //true  
qDebug()<<db_sqlite.driver()->hasFeature(QSqlDriver::NamedPlaceholders);       //true  
qDebug()<<db_sqlite.driver()->hasFeature(QSqlDriver::PositionalPlaceholders);  //true  
qDebug()<<db_sqlite.driver()->hasFeature(QSqlDriver::LastInsertId);            //true  
qDebug()<<db_sqlite.driver()->hasFeature(QSqlDriver::BatchOperations);         //false 
qDebug()<<db_sqlite.driver()->hasFeature(QSqlDriver::SimpleLocking);           //true  
qDebug()<<db_sqlite.driver()->hasFeature(QSqlDriver::LowPrecisionNumbers);     //true  
qDebug()<<db_sqlite.driver()->hasFeature(QSqlDriver::EventNotifications);      //true  
qDebug()<<db_sqlite.driver()->hasFeature(QSqlDriver::FinishQuery);             //true  
qDebug()<<db_sqlite.driver()->hasFeature(QSqlDriver::MultipleResultSets);      //false 
qDebug()<<db_sqlite.driver()->hasFeature(QSqlDriver::CancelQuery);             //false