ALTER GROUP(7)                                            SQL Commands                                            ALTER GROUP(7)



NAME
       ALTER GROUP - change role name or membership


SYNOPSIS
       ALTER GROUP groupname ADD USER username [, ... ]
       ALTER GROUP groupname DROP USER username [, ... ]

       ALTER GROUP groupname RENAME TO newname


DESCRIPTION
       ALTER  GROUP  changes  the  attributes of a user group.  This is an obsolete command, though still accepted for backwards
       compatibility, because groups (and users too) have been superseded by the more general concept of roles.

       The first two variants add users to a group or remove them from a group.  (Any  role  can  play  the  part  of  either  a
       ``user''  or  a ``group'' for this purpose.) These variants are effectively equivalent to granting or revoking membership
       in the role named as the ``group''; so the preferred way to do this is to use GRANT [grant(7)] or REVOKE [revoke(7)].

       The third variant changes the name of the group. This is  exactly  equivalent  to  renaming  the  role  with  ALTER  ROLE
       [alter_role(7)].

PARAMETERS
       groupname
              The name of the group (role) to modify.

       username
              Users  (roles)  that are to be added to or removed from the group.  The users must already exist; ALTER GROUP does
              not create or drop users.

       newname
              The new name of the group.

EXAMPLES
       Add users to a group:

       ALTER GROUP staff ADD USER karl, john;

       Remove a user from a group:

       ALTER GROUP workers DROP USER beth;


COMPATIBILITY
       There is no ALTER GROUP statement in the SQL standard.

SEE ALSO
       GRANT [grant(7)], REVOKE [revoke(7)], ALTER ROLE [alter_role(7)]



SQL - Language Statements                                  2011-09-22                                             ALTER GROUP(7)