Hi

I'm trying to better undestand how the connection to a mysal database works(http://qt-project.org/doc/qt-5.0/qts...onnecting.html).

Ther is something i'm missing about removing a connection i still miss.
Qt Code: 
  1. #include <QSqlDatabase>
  2.  
  3. QSqlDatabase *connection(QString newHostName, QString newDatabase, QString newUserName, QString newPassword)
  4. {
  5.     QSqlDatabase *db = new QSqlDatabase(QSqlDatabase::addDatabase("QMYSQL", "connection1"));
  6.     db->setHostName(newHostName);
  7.     db->setDatabaseName(newDatabase);
  8.     db->setUserName(newUserName);
  9.     db->setPassword(newPassword);
  10.     return db;
  11. }
  12.  
  13. int main()
  14. {
  15.     //QCoreApplication a(argc, argv);
  17.     bool dbStatus = false;
  18.     for(int i=0; i<2;i++)
  19.     {
  20.         if(dbStatus)
  21.         {
  22.             db->close();
  23.             db->removeDatabase("connection1");
  24.             dbStatus = false;
  25.         }
  26.         else
  27.         {
  28.            db = connection("localhost", "db01", "user1", "123");
  29.            db->open();
  30.            dbStatus = true;
  31.         }
  32.     }
  33. }
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This code loops the connect/disconnect to database.
Why do i get the message every time i remove the database?
"QSqlDatabasePrivate::removeDatabase: connection 'connection1' is still in use, all queries will cease to work."