Hi
I'm using sqlite with Qt library
Qt Code: 
  1. #include <QtSql/QSqlDatabase>
  2. #include <QSqlQuery>
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this is my code for connection :
Qt Code: 
  1. QSqlDatabase mydb = QSqlDatabase::addDatabase("QSQLITE");
  2.     mydb.setDatabaseName(QCoreApplication::applicationDirPath() + "/data/27115");
  3.    mydb.open();
  4.     QSqlQuery query("SELECT * FROM setting");
  5.     if (mydb.open())
  6.     {
  7.         query.exec();
  8.         int fieldNo = query.record().indexOf("theme");
  9.         while (query.next()) {
  10.             ui->cmb_themes->addItem(query.value(fieldNo).toString());
  11.         }
  12.     }
  13.    mydb.close();
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Now in my system,its work right without any problem,but i copied debug folder in other computer and run, my application cant find db file!!

in other system i installed qt sdk and open myapp.pro on it,and run.. next .. db file could run and worked.why?
in my laptop with Windows7 64 bits , output address is : '.....'-build-desktop-Qt_4_7_4_for_Desktop_-_MinGW_4_4__Qt_SDK__Debug

and in other computer with windows 7 32 bits , output address is : '.....'-build-desktop

thanks before answer