Running jobs as severent users

Question

The job I am creating in the Job Scheduler needs to run SQL as several different users. I have heard that 11g will allow this. However I am wondering whether there is any way to do it in 10gR2. I have tried to embed a CONNECT user/password within the PL/SQL block as EXECUTE IMMEDIATE and stand alone. Nothing seems to work. Does anyone have any suggestions on a way to do this before 11g?

Answer 1

Hi,
The Scheduler can run stored procedures and pl/sql blocks but it runs all PL/SQL as the job owner. The limitation of not being able to run different SQL as different users is a PL/SQL limitation.
There is a workaround however. For each SQL that needs to run as a particular user create a PL/SQL stored procedure in that user's schema . By default (do not use the authid current_user clause) these stored procedures run with the privileges of their owner. Then grant execute on these stored procedures to the job owner. Now the job owner can call any of these procedures when he needs to run SQL as another user.
One thing to watch out for is that stored procedures do not use role privileges , so do not rely on role privileges in your SQL statements.
This should do what you need.
Hope this helps,
Ravi.