SQL - Data Control

Data Control

The Data Control Language (DCL) authorizes users to access and manipulate data. Its two main statements are:

  • GRANT authorizes one or more users to perform an operation or a set of operations on an object.
  • REVOKE eliminates a grant, which may be the default grant.

Example:

GRANT SELECT, UPDATE ON My_table TO some_user, another_user; REVOKE SELECT, UPDATE ON My_table FROM some_user, another_user;

Read more about this topic:  SQL

Famous quotes containing the words data and/or control:

    “This city is neither a jungle nor the moon.... In long shot: a cosmic smudge, a conglomerate of bleeding energies. Close up, it is a fairly legible printed circuit, a transistorized labyrinth of beastly tracks, a data bank for asthmatic voice-prints.”
    —Susan Sontag (b. 1933)

    “When a book, any sort of book, reaches a certain intensity of artistic performance it becomes literature. That intensity may be a matter of style, situation, character, emotional tone, or idea, or half a dozen other things. It may also be a perfection of control over the movement of a story similar to the control a great pitcher has over the ball.”
    —Raymond Chandler (1888–1959)