ORA-36650: (XSDUNION10) Concat dimension workspace object cannot be changed to UNIQUE. Leaves workspace object and workspace object share the value number.
Cause : Unique concat base dimensions cannot contain duplicate values.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Use MAINTAIN RENAME to change one of the duplicate values and retry.
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.