SQL Guide : Database system tables and system views : System views : USERS
  
USERS
The USERS system view identifies users and roles.
Column name
Data type
Description
ID
INTEGER
User or role identifier.
NAME
WVARCHAR
User or role name.
TYPE
WVARCHAR
User type, either USER or ROLE.
PRIV
INTEGER
Privilege information.
PRIORITY
INTEGER
Reserved for future use.
PRIVATE
INTEGER
Specifies whether user is private or public.
See also
System views