Revoking User tables privileges from one user to other user thru DBA.

Hi,
I want to revoke the select privilege from user granted tables to other user from Sys/Dba roled user.
Detail
---------------I have 3 users namely
1.User1 (Role: Normal User)
2.User2 (Role: Normal User)
3.SYS (Role: DBA privileged user)
User1 has created a table called Table1 and grant the select privilege to User2.
Is it possible that sys (DBA privileged user) user can revoke the select privilege of table1 from user2??.
Thanks,
Natarajan.U

You can not revoke the privileges that were not granted by you or you will hit the error ORA-01927: cannot REVOKE privileges you did not grant.
Even SYS/user with SYSDBA role can not revoke others grants.

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