MS Sql native driver??

[LordQt]

Hello friends,

I try to connect to a ms sql 2005 database. So I first try to use the QODBC driver ( QtSQL).

Here is my Code:

#include <QtGui>
#include <QtSql>
#include <QDebug>
 
int main(int argc, char* argv[]) {
   QApplication app(argc, argv);
 
   QSqlDatabase db = QSqlDatabase::addDatabase("QODBC");
   db.setHostName("localhost");
   db.setDatabaseName("ExapleDB");
   db.setUserName("Admin");
   db.setPassword("admin");
 
   if (!db.open()) {
      QSqlError err =  db.lastError ();
      QMessageBox::information(0, QObject::tr("Fehler"), err.text());
      return 1;
   }
   QTableView tableView;
   QSqlTableModel model;
   // --- Alle Daten abfragen ---
   model.setTable("Artikel");
   model.select();
   model.setEditStrategy(QSqlTableModel::OnFieldChange);
   tableView.setModel(&model);
   tableView.setWindowTitle("SQL-Demonstration");
   tableView.show();
   return app.exec();
}

#include <QtGui>
#include <QtSql>
#include <QDebug>

int main(int argc, char* argv[]) {
   QApplication app(argc, argv);

   QSqlDatabase db = QSqlDatabase::addDatabase("QODBC");
   db.setHostName("localhost");
   db.setDatabaseName("ExapleDB");
   db.setUserName("Admin");
   db.setPassword("admin");

   if (!db.open()) {
      QSqlError err =  db.lastError ();
      QMessageBox::information(0, QObject::tr("Fehler"), err.text());
      return 1;
   }
   QTableView tableView;
   QSqlTableModel model;
   // --- Alle Daten abfragen ---
   model.setTable("Artikel");
   model.select();
   model.setEditStrategy(QSqlTableModel::OnFieldChange);
   tableView.setModel(&model);
   tableView.setWindowTitle("SQL-Demonstration");
   tableView.show();
   return app.exec();
}

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I search for the Driver QODBC but I d´ont find it. I have install Qt by the installer 4.3.1.
Than I read the Docu and I read this

Note: You should use native drivers in preference to the ODBC driver where they are available. ODBC support can be used as a fallback for compliant databases if no native drivers are available.

First: Where can I found a native Driver for MS Sql 2005?
Second: How can I install the QODBC driver, because in the standard installation I have only the qsqlite4.dll?