When an application and/or process has completed operations with the database, it must release resources by closing the open files and disconnecting from the database engine.
Below is the code for Done():
//---------------------------------------------------------------------------
void TForm1::Done()
{
// close tables
TabOrderList->Active = false;
TabOrderItem->Active = false;
TabItemMast->Active = false;
TabCustMast->Active = false;
// disconnect from database
CtDatabase1->Active = false;
// logout from session
CtSession1->Active = false;
}