Qt
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Version vom 21:04, 13. Okt. 2012 bei Mali (Diskussion | Beiträge)
MySQL
//--- use a QTextStream: it makes it easier to output --- //--- QString to cout. --- QTextStream cout(stdout, QIODevice::WriteOnly); //--- define the database connection --- QSqlDatabase db = QSqlDatabase::addDatabase("QMYSQL"); db.setHostName("localhost"); // host db.setDatabaseName("qttest"); // database db.setUserName("qtuser"); // user db.setPassword("qtuser"); // password //--- attempt to open it --- bool ok = db.open(); if ( ok ) { //--- we're good! --- cout << "Database open\n"; //--- run a query and print data returned --- QSqlQuery query( "select * from address" ); if ( !query.isActive() ) cout << "Query Error" + query.lastError().text() << endl; else while (query.next()) { int Id = query.value(0).toInt(); QString word = query.value(1).toString(); cout << QString( "%1\t%2\n").arg( Id).arg( word ); } //--- add a new entry to the table --- query.prepare( "INSERT INTO address (fname, lname) VALUES ( :word, :word ) "); query.bindValue( ":word", "Banana" ); query.exec(); //--- close connection to database db.close(); } else //--- something went wrong --- cout << "Error opening database\n";
Quelle: http://cs.smith.edu/dftwiki/index.php/Qt4/Qt-Creator_Read_MySql_Table_%28Console_Mode%29
QT MySQL driver
Unter Ubuntu muss das Paket libqt4-sql-mysql
mit sudo apt-get install libqt4-sql-mysql
installiert werden.