Users:
1. List of Users
set pages 999 lines 100 col username format a20 col status format a8 col tablespace format a20 col temp_ts format a20 select username , account_status status , created , default_tablespace tablespace , temporary_tablespace temp_ts from dba_users order by username /
Roles:
1. Find a role
select * from dba_roles where role like '&role' /
2. List roles granted to a user
select grantee , granted_role , admin_option from dba_role_privs where grantee like upper('&username') /
3. List system privileges granted to a role
select privilege , admin_option from role_sys_privs where role like '&role' /
4. List table privileges granted to a role
select owner || '.' || table_name "TABLE" , column_name , privilege , grantable from role_tab_privs where role like '&role' /
Links: