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Example-GRANT CREATE SESSION TO MCA12;
(This command gives system level permission on creating a session - not portable)
GRANT SELECT ON EMP TO MCA12;
(Object level permission on table EMP)
GRANT SELECT, UPDATE, INSERT, DELETE ON EMP TO MCA12;
GRANT SELECT, UPDATE ON EMP TO MCA12, MCA13;
(Two users)
GRANT ALL ON EMP TO PUBLIC;
(All permission to every users, do not use it. It is very risky for database)
Revoke: It is used to revoke the permission granted.
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