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ALTER USER command not working

EXPERT RESPONSE FROM: Brian Peasland

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QUESTION POSED ON: 28 June 2007
Hi Brian, when I used the following command:
ALTER USER scott QUOTA 0 ON system;
to restrict a user not to use a table, I got the message "system altered" but the user can still create the table. Can you explain the reason for this?

EXPERT RESPONSE
The user has probably been granted the UNLIMITED TABLESPACE system privilege which overrides the quota setting. Revoke this from the user as follows:

REVOKE unlimited tablespace FROM scott;

The user should no longer be able to create tables in that tablespace.

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