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//! [0]
SELECT forename, surname FROM people;
//! [0]


//! [1]
QSqlQuery q("select * from employees");
QSqlRecord rec = q.record();

qDebug() << "Number of columns: " << rec.count();

int nameCol = rec.indexOf("name"); // index of the field "name"
while (q.next())
    qDebug() << q.value(nameCol).toString(); // output all names
//! [1]


//! [2]
QSqlQuery q;
q.prepare("insert into myTable values (?, ?)");

QVariantList ints;
ints << 1 << 2 << 3 << 4;
q.addBindValue(ints);

QVariantList names;
names << "Harald" << "Boris" << "Trond" << QVariant(QVariant::String);
q.addBindValue(names);

if (!q.execBatch())
    qDebug() << q.lastError();
//! [2]


//! [3]
1  Harald
2  Boris
3  Trond
4  NULL
//! [3]