sql server user permissions and roles

1-- SQL Server: list of users and roles
2SELECT dp.NAME      AS principal_name,
3       dp.TYPE_DESC AS principal_type_desc,
4       o.NAME       AS object_name,
5       p.PERMISSION_NAME,
6       p.STATE_DESC AS permission_state_desc
7FROM sys.database_permissions p
8         LEFT OUTER JOIN sys.all_objects o
9                         ON p.MAJOR_ID = o.OBJECT_ID
10         INNER JOIN sys.database_principals dp
11                    ON p.GRANTEE_PRINCIPAL_ID = dp.PRINCIPAL_ID;