Script to list the users of the databases

Yesterday, one of my clients came up with this requirement to develop a script where in we can list all the users of the databases for reporting purposes at his end. Scripted the following query to help his cause.

DECLARE @DBuser_sql VARCHAR(4000)
DECLARE @DBuser_table TABLE (DBName VARCHAR(200), UserName VARCHAR(250), LoginType VARCHAR(500), AssociatedRole VARCHAR(200))
SET @DBuser_sql='SELECT ''?'' AS DBName, AS Name,a.type_desc AS LoginType,USER_NAME(b.role_principal_id) AS AssociatedRole FROM ?.sys.database_principals a
LEFT OUTER JOIN ?.sys.database_role_members b ON a.principal_id=b.member_principal_id
WHERE a.sid NOT IN (0x01,0x00) AND a.sid IS NOT NULL AND a.type NOT IN (''C'') AND a.is_fixed_role <> 1 AND NOT LIKE ''##%'' AND ''?'' NOT IN (''master'',''msdb'',''model'',''tempdb'') ORDER BY Name'
INSERT @DBuser_table
EXEC sp_MSforeachdb @command1=@dbuser_sql

This query will list all the users of all the databases on SQL server instance along with the Login type of the users and the Associated roles as well. Thus using this script we can further extract specific details like list of users for a particular database and all sorts of stuff.

Hope this helps!! Happy Reporting!!