Cancelling the privaleges of the user accessing the schema objects ???

Hi,
I have given privilages to the user to access my schema objects(tables). Can i cancell the privilages of the user of accessing my schema objects(table) which i granted them ???
Thank you !!!

Hi,
If you gave a privilege or role to a user using GRANT, you can take it away using REVOKE.
For example:
REVOKE SELECT ON my_table FROM user_name;un-does the privilege given by
GRANT SELECT ON my_table TO user_name;

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[My Italian Oracle blog| http://oracleitalia.wordpress.com/2010/02/07/aggiornare-una-tabella-con-listruzione-merge/]

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Cancelling the privaleges of the user accessing the schema objects ???

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