create_user_statement 

<create_user_statement> ::=
  CREATE USER <user_name> PASSWORD <password>
    [<user_mode>]
    [TIMEOUT <unsigned_integer>]
    [COSTWARNING <unsigned_integer>]
    [COSTLIMIT <unsigned_integer>]
    [[NOT] EXCLUSIVE]
    [DEFAULTCODE <ASCII_or_UNICODE>]
    [<connect_mode>]
| CREATE USER <user_name> PASSWORD <password> LIKE <source_user>
| CREATE USER <user_name> PASSWORD <password> USERGROUP <usergroup_name>