Just example from docs...
Qt Code:
  1. QSqlQuery query;
  2. query.prepare( "INSERT INTO atable (id, forename, surname) "
  3. "VALUES (:id, :forename, :surname)" );
  4. query.bindValue( ":id", 1001 );
  5. query.bindValue( ":forename", "Bart" );
  6. query.bindValue( ":surname", "Simpson" );
  7. query.exec();
To copy to clipboard, switch view to plain text mode 

p.s. Read this all !