How to preserve database user details before cloning

Question

Hi Experts,
How to preserve database user details before cloning,
I am cloning the test database with the prod database, so my concern is how to preserve the users details which they have in TEST database( like roles, privilges, profiles , passwords, etc.....). Because that all gone after cloning from PROD.
Thanks
Sam

Answer 1

use the following script to take the backup of roles,pwd & other  details of DEV . after cloning  execute the scripts back in DEV to restore the old values....
set head off
set lines 200
set pages 9999
col owner for a20
col db_link for a30
col username for a15
col host for a40
col created for a12
spool db_details.lst
select * from global_name;
select * from dba_db_links;
select name from v$controlfile;
select member from v$logfile;
select file_name from dba_data_files;
select file_name from dba_temp_files;
spool off
spool create_db_links.lst
select 'create DATABASE LINK '||owner#||'.'||NAME|| ' connect to '|| userid || ' identified by '|| password || ' using '||''''|| host ||''''||'; ' FROM sys.link$ order by owner#;
select username,user_id from dba_users where user_id in (select distinct owner# from link$);
spool off
spool alter_user.lst
select ' alter user '||username||' identified by values ' || chr(39)||password||chr(39) || ';' from dba_users;
spool off
Set verify off
Set space 0
set feedback off;
set echo off;
set pages 1000;
set lines 150;
spool create_synonym.sql
Select 'CREATE SYNONYM '||owner||'.'||synonym_name||' FOR '||table_owner||'.'||table_name||'@'||db_link||';' from dba_synonyms where db_link is not null and table_owner is not null;
Select 'CREATE SYNONYM '||owner||'.'||synonym_name||' FOR '||table_name||'@'||db_link||';' from dba_synonyms where db_link is not null and table_owner is null;
spool off;
Spool profile.sql
select ' alter user '||username||' profile '||PROFILE||';' from dba_users;
spool off