Oracle 9i <> ADO

Hello NG,

i use ADO 2.8 in my Delphi application to connect to SQL-Server 2000. All
works fine, but now i've to support Oracle 9i. The ADO-Connection (.UDL)
works, but if i try to connect, my Delphi want "AutoInc" field, but Oracle
give me only float. Is this an error into ADO, Oracle or Delphi? Is there
short way to solve this problem or do i need to swith to other components <>

Best regards