alter_group(7) [redhat man page]

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

NAME

       ALTER GROUP - add users to a group or remove users from a group

SYNOPSIS

       ALTER GROUP name ADD USER username [, ... ]
       ALTER GROUP name DROP USER username [, ... ]

   INPUTS
       name   The name of the group to modify.

       username
	      Users which are to be added or removed from the group. The user names must exist.

   OUTPUTS
       ALTER GROUP
	      Message returned if the alteration was successful.

DESCRIPTION

       ALTER  GROUP is used to add or remove users from a group. Only database superusers can use this command.  Adding a user to a group does not
       create the user. Similarly, removing a user from a group does not drop the user itself.

       Use CREATE GROUP [create_group(7)] to create a new group and DROP GROUP [drop_group(7)] to remove a group.

USAGE

       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

   SQL92
       There is no ALTER GROUP statement in SQL92. The concept of roles is similar.

SQL - Language Statements					    2002-11-22							    ALTER GROUP(7)

CREATE 
GROUP(7) 						   SQL Commands 						   CREATE GROUP(7)

NAME

       CREATE GROUP - define a new user group

SYNOPSIS

       CREATE GROUP name [ [ WITH ] option [ ... ] ]

       where option can be:

	    SYSID gid
	  | USER  username [, ...]

   INPUTS
       name   The name of the group.

       gid    The SYSID clause can be used to choose the PostgreSQL group id of the new group. It is not necessary to do so, however.

	      If this is not specified, the highest assigned group id plus one, starting at 1, will be used as default.

       username
	      A list of users to include in the group. The users must already exist.

   OUTPUTS
       CREATE GROUP
	      Message returned if the command completes successfully.

DESCRIPTION

       CREATE  GROUP  will create a new group in the database installation.  Refer to the Administrator's Guide for information about using groups
       for authentication.  You must be a database superuser to use this command.

       Use ALTER GROUP [alter_group(7)] to change a group's membership, and DROP GROUP [drop_group(7)] to remove a group.

USAGE

       Create an empty group:

       CREATE GROUP staff;

       Create a group with members:

       CREATE GROUP marketing WITH USER jonathan, david;

COMPATIBILITY

   SQL92
       There is no CREATE GROUP statement in SQL92.  Roles are similar in concept to groups.

SQL - Language Statements					    2002-11-22							   CREATE GROUP(7)