ORA-27038: created file already exists
Cause : trying to create a database file, but file by that name already exists
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
verify that name is correct, specify reuse if necessary
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.