This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
Revoke command is used to remove granted privileges given to the user.
Revoke privileges ON object FROM user_name
To revoke the delete privilege on student table:
REVOKE delete ON student FROM XYZ
subject: What is REVOKE command and What is Revoke command use for in PHP?