alter_group7
Change a user group
Usage
ALTER GROUP groupname ADD USER username [, ... ] ALTER GROUP groupname DROP USER username [, ... ] ALTER GROUP groupname RENAME TO newname
Overview
ALTER GROUP is used to change a user group. The first two variants 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.
The third variant changes the name of the group. Only a database superuser can rename groups.
Parameters
groupname
|
The name of the group to modify. |
|---|---|
username
|
Users which are to be added or removed from the group. The users must exist. |
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. The concept of roles is similar.