alter_group man page on aLinux

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ALTER GROUP()			 SQL Commands			 ALTER GROUP()

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 obso‐
       lete  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       because groups (and users too) have been superseded by the more general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	grant‐
       ing  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 equiv‐
       alent 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(l)], ALTER ROLE [alter_role(l)]

SQL - Language Statements	  2005-11-05			 ALTER GROUP()
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