Hi,
Do all you know about this error:
ORA-04021: timeout occured while waiting to lock object

Actually i have implemented Oracle 9i rel 2.0 in my organization.
After implementing, when any programmer run any of these commands or statements (Alter,Grant,Drop,Truncate,Delete,Desc etc.) his session is hung.

And after a long time the above error is generated.
When I kill these sessions then these commands could run successfully.

This problem was not occured in Oracle 8.0.5 (my prior version in organization)

Kindly any one tell me about this problem. I have tried alot but nothing success.

Farrukh!
DBA