List of usernames and password who are same

Question

Hi,
I have created several user with the default password same as the username. They are suppose to change their password. But Some of them have not changed their password.
Now, I want the list of those database users who has the same password as thier username. How can I find it??
I really appreciate if you help me.
Thanks,
Api

Answer 1

Why don't you create some temporary db links using all username and same password as usernames. Then whichever db link allows you to select the data will be the one having same password. Following scripts with some tweaking might be helpful
--creating db links
begin
for rec in (
select * from dba_users where username NOT IN ('SYS','SYSTEM') --exclude other system users
loop
execute immediate 'create database link '||rec.username|| '_lnk connect to '||rec.username ||' identified by '||rec.username ||' using ''<DB_ALIAS>''';
end loop;
end;
--printing usernames where username and passwrod are same
declare
v_name varchar2(100);
begin
for rec in
(select * from dba_db_links where db_link like '%lnk')
loop
begin
execute immediate 'select global_name from global_name@'||rec.db_link into v_name;
dbms_output.put_line('This link uses default username and password '||rec.db_link);
exception
when others THEN NULL;
end;
end loop;
end;
Regards,
Nitin