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ROLLBACK
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If more than one user grants access to the same table to a user, then all the grantors must
perform a revoke for the user to lose access to the table.
Using the keyword ALL revokes all the privileges granted on the table or view.
FROM PUBLIC
Revokes the specified privileges on the table or view from any user with access to the
system.
RESTRICT | CASCADE
Prompts SQL to check to see if the privilege being revoked was passed on to other users.
This is possible only if the original privilege included the WITH GRANT OPTION clause. If
so, the REVOKE statement fails and generates an error. If the privilege was not passed on,
the REVOKE statement succeeds.
If the REVOKE statement specifies CASCADE, revoking the access privileges from a user also
revokes the privileges from all users who received the privilege from that user.
If the REVOKE statement specifies neither RESTRICT nor CASCADE, the behavior is the same
as for CASCADE.
Example In this example, REVOKE is used on INSERT and DELETE privileges:
ROLLBACK
Syntax
REVOKE INSERT ON customer FROM dbuser1 ;
REVOKE DELETE ON cust_view FROM dbuser2 ;
If the username specified in a GRANT DBA or GRANT RESOURCE operation does not already exist,
the GRANT statement creates a row in the SYSDBAUTH system table for the new username. This
row is not deleted by a subsequent REVOKE operation.
Authorization
Must have the DBA privilege or ownership of the table (to revoke privileges on a table). To
revoke audit privileges, the user must have the DBA privilege or AUDIT ADMINISTRATION
WITH GRANT privilege and be the user who granted the audit privilege.
Related statement
GRANT
Ends the current transaction and undoes any database changes performed during the transaction.
ROLLBACK [ WORK ] ;
Notes • Under certain circumstances, SQL marks a transaction for abort but does not actually roll
it back immediately. Without an explicit ROLLBACK, any subsequent updates do not take