ORA-00275: media recovery has already been started
Cause : An attempt was made to start a second media recovery operation in the same session.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Complete or cancel the first media recovery session or start another session to perform media recovery.
Well, the reason for above error is that i have taken the above script from a 11g database and running it on 10g database. 11g has bring some changes in password management. Below code is executed on 11g and user created successfully, which is expected result.