REVOKE
  SQL - Language Statements
 
 
  REVOKE
  remove access privileges
 
 
  REVOKE
 
 
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 or groups of users.  The key word
   PUBLIC refers to the implicitly defined group of
   all users.
  
  
   See the description of the  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 member of, and privileges granted to
   PUBLIC.  Thus, for example, revoking SELECT> privilege
   from PUBLIC does not necessarily mean that all users
   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 privilege is revoked, not the privilege itself.
  
  
   If a user holds a privilege with grant option and has granted it to
   other users then the privileges held by those other users 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
   CASCADE is specified, else the revoke action
   will fail.  This recursive revocation only affects privileges that
   were granted through a chain of users that is traceable to the user
   that is the subject of this REVOKE command.
   Thus, the affected users may effectively keep the privilege if it
   was also granted through other users.
  
 
 
  Notes
  
   Use 's \z command to
   display the privileges granted on existing objects.  See also  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 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  command
    apply analogously 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