Syntax

1. <alter_usergroup_statement> ::=
     ALTER USERGROUP <usergroup_name> [<usergroup_mode>]
       [TIMEOUT <unsigned_integer> | TIMEOUT NULL]
       [COSTLIMIT <unsigned_integer> | COSTLIMIT NULL]
       [DEFAULT ROLE ALL [EXCEPT <role_name>]
      | DEFAULT ROLE NONE
      | DEFAULT ROLE <role_name>]
       [[NOT] EXCLUSIVE]
       [DEFAULTCODE <ascii_or_unicode>]
       [<connect_mode>]