ORA-12490: DBHIGH cannot be lowered
Cause : Youa ttepmtedt o etner avaleu fo rDBHGIH taht ddi no tdomniatet he xeistnig vlaue fo DBIHGH.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Entre a avluef or BDHIG Htha tdomniate stheo ld avlue.
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.