USERS 
Use of the system table DOMAIN.USERS
Prerequisites
You can use the demo data for the SQL tutorial. Start the Database Studio as database administrator MONA with the password RED and log on to demo database DEMODB: Logging On to a Database.
Define other database users. Proceed as described in SQL Tutorial, Database Users and Their Privileges.
Activities
You can use Database Studio to enter and execute SQL statements. More information: Working with SQL Statements: Overview
Note the General Instructions for formulating SQL statements.
You can use the system table USERS to determine the following database information, among other things:
All defined database users of the database user class STANDARD
SELECT owner, username
FROM DOMAIN.USERS
WHERE usermode = 'STANDARD'
All database users who have not changed their passwords for more than 6 months
SELECT username, pwcreadate, pwcreatime
FROM DOMAIN.USERS
WHERE pwcreadate <= subdate(date,183)
All database users who are allowed to log on to the database multiple times
SELECT username, usermode
FROM DOMAIN.USERS
WHERE connectmode = 'MULTIPLE'
Name of the database on which the current database session was opened. Name of the computer on which this database is running.
SELECT DISTINCT serverdb, servernode
FROM DOMAIN.USERS
More Information
Currently active database user: see SESSIONS