Hi,
Qt Code: 
  1. METHOD1()
  2. {
  3.         if(db.open())
  4.         {
  5.  
  6.             QSqlDatabase db=QSqlDatabase::addDatabase("QSQLITE");
  7.             db.setDatabaseName("/mnt/jffs2/Offlinedb.sqlite");
  8.             QSqlQuery query("select * from networkmode");
  9.                  while (query.next()) {
  10.                      QString country = query.value(0).toString();
  11.                      QMessageBox::critical(0,"Success",country,QMessageBox::Ok);
  12.  
  13.                  }
  14.        }
  15.             else
  16.             {
  17.                 QMessageBox::critical(0,"Error","Database Connection Problem",QMessageBox::Ok);
  18.             }
  19. }
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-------------------------
Qt Code: 
  1. method2()
  2. {
  3.     QSqlDatabase db=QSqlDatabase::addDatabase("QSQLITE");
  4.     db.setDatabaseName("/mnt/jffs2/Offlinedb.sqlite");
  5.     QSqlQuery query;
  6.     if(db.open())
  7.     {
  8.         bool ch=query.exec("select * from networkmode");
  9.         qDebug()<<"REQUIRED CH______REGQISSSSSs"<<ch;
  10.         if(ch)
  11.             QMessageBox::critical(0,"Success","Database Conected",QMessageBox::Ok);
  12.         else
  13.             QMessageBox::critical(0,"Error",query.lastError().text(),QMessageBox::Ok);
  14.     }
  15.     else
  16.     {
  17.         QMessageBox::critical(0,"Error","Database Connection Problem",QMessageBox::Ok);
  18.     }
  19.  
  20. }
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->The METHOD1 is executing with no issues but when i follow method2 procedure i am getting the error as "out of memory Unable to execute statement" from line13......Y is to so behaving odd ????
->i am calling those methods in constructor.