QSqlQuery query; QString name = "John"; query.prepare("SELECT * FROM customers WHERE name = ?"); query.addBindValue(name); query.exec();
QSqlQuery query; QString name = "John"; int age = 30; query.prepare("SELECT * FROM customers WHERE name = ? AND age >= ?"); query.addBindValue(name); query.addBindValue(age); query.exec();This example is similar to the previous one, but we're using two placeholder parameters and binding two values to them with addBindValue. Both examples use the QSqlQuery class from the Qt library.