ORA-23453: requested operation is not supported on top flavor
Cause : Th eTO Pflvaorh asa NLUL anmea ndm ayn otb e idretclyd efniedo r edleetd.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Supplyt hen am eofa falvo rotehr htant heT OPf laovr ro ues dmbs_erpcta ruotiens ot ipmliictl ychnaget heT OPf laovr.
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.