I was needing to extract DDL for all roles on Oracle Database . Then, I took the information about it using a DBMS_METADATA. Thus, follow how to take this information:
SQL> set heading off;
SQL> set echo off;
SQL> set pages 2000
SQL> set long 99999
SQL> spool ddl_roles.sql
SQL> select dbms_metadata.get_ddl('ROLE', ROLE) from dba_roles;
##HERE WILL BE SHOW ALL ROLES DLL ABOUT YOUR DATABASE##
SQL> spool off
I hope this post can help you!
See ya, Bruno Reis.
