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revoke(7) - REVOKE - remove access privileges - man 7 revoke

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REVOKE(7)                        SQL Commands                        REVOKE(7)



NAME
       REVOKE - remove access(2,5) privileges


SYNOPSIS
       REVOKE [ GRANT OPTION FOR ]
           { { SELECT | INSERT | UPDATE | DELETE | RULE | REFERENCES | TRIGGER }
           [,...] | ALL [ PRIVILEGES ] }
           ON [ TABLE ] tablename [, ...]
           FROM { username | GROUP groupname | PUBLIC } [, ...]
           [ CASCADE | RESTRICT ]

       REVOKE [ GRANT OPTION FOR ]
           { { CREATE | TEMPORARY | TEMP } [,...] | ALL [ PRIVILEGES ] }
           ON DATABASE dbname [, ...]
           FROM { username | GROUP groupname | PUBLIC } [, ...]
           [ CASCADE | RESTRICT ]

       REVOKE [ GRANT OPTION FOR ]
           { EXECUTE | ALL [ PRIVILEGES ] }
           ON FUNCTION funcname ([type, ...]) [, ...]
           FROM { username | GROUP groupname | PUBLIC } [, ...]
           [ CASCADE | RESTRICT ]

       REVOKE [ GRANT OPTION FOR ]
           { USAGE | ALL [ PRIVILEGES ] }
           ON LANGUAGE langname [, ...]
           FROM { username | GROUP groupname | PUBLIC } [, ...]
           [ CASCADE | RESTRICT ]

       REVOKE [ GRANT OPTION FOR ]
           { { CREATE | USAGE } [,...] | ALL [ PRIVILEGES ] }
           ON SCHEMA schemaname [, ...]
           FROM { username | GROUP groupname | PUBLIC } [, ...]
           [ CASCADE | RESTRICT ]


DESCRIPTION
       The  REVOKE  command  revokes previously granted privileges from one or
       more users(1,5) or groups of users.  The  key  word  PUBLIC  refers  to  the
       implicitly defined group of all users.

       See  the description of the GRANT [grant(7)] command for the meaning of
       the privilege types.

       Note that any particular user will have the sum of  privileges  granted
       directly to him, privileges granted to any group he is presently a mem-
       ber of, and privileges granted to PUBLIC. Thus, for  example,  revoking
       SELECT  privilege  from PUBLIC does not necessarily mean that all users(1,5)
       have lost SELECT privilege on the object: those  who  have  it  granted
       directly or via a group will still have it.

       If  GRANT OPTION FOR is specified, only the grant option for the privi-
       lege is revoked, not the privilege itself.

       If a user holds a privilege with grant option and  has  granted  it  to
       other  users(1,5)  then  the privileges held by those other users(1,5) are called
       dependent privileges. If the privilege or the grant option held by  the
       first  user  is  being  revoked  and  dependent privileges exist, those
       dependent privileges are also revoked if(3,n) CASCADE is specified, else the
       revoke  action will fail. This recursive revocation only affects privi-
       leges that were granted through a chain of users(1,5) that is  traceable  to
       the  user  that  is  the  subject  of  this  REVOKE command.  Thus, the
       affected users(1,5) may effectively  keep  the  privilege  if(3,n)  it  was  also
       granted through other users.

NOTES
       Use  psql(1)'s \z command to display the privileges granted on existing
       objects. See also GRANT [grant(7)] for information about the format.

       A user can only revoke privileges that were granted  directly  by  that
       user. If, for example, user A has granted a privilege with grant option
       to user B, and user B has in(1,8) turned granted it to user C, then  user  A
       cannot  revoke  the  privilege  directly from C.  Instead, user A could
       revoke the grant option from user B and use the CASCADE option so  that
       the privilege is automatically revoked from user C.

       If  a superuser chooses to issue a GRANT or REVOKE command, the command
       is performed as though it were issued by  the  owner  of  the  affected
       object.  Since  all  privileges  ultimately  come from the object owner
       (possibly indirectly via chains of grant options), it is possible for a
       superuser to revoke all privileges, but this may require use of CASCADE
       as stated above.

EXAMPLES
       Revoke insert privilege for the public on table films:

       REVOKE INSERT ON films FROM PUBLIC;


       Revoke all privileges from user manuel on view kinds:


       REVOKE ALL PRIVILEGES ON kinds FROM manuel;


COMPATIBILITY
       The compatibility notes of the GRANT [grant(7)]  command  apply  analo-
       gously to REVOKE. The syntax summary is:

       REVOKE [ GRANT OPTION FOR ] privileges
           ON object [ ( column [, ...] ) ]
           FROM { PUBLIC | username [, ...] }
           { RESTRICT | CASCADE }

       One  of  RESTRICT or CASCADE is required according to the standard, but
       PostgreSQL assumes RESTRICT by default.

SEE ALSO
       GRANT [grant(7)]



SQL - Language Statements         2003-11-02                         REVOKE(7)

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