ORA-19911: datafile string contains future changes at the incarnation boundary
Cause : The fiel did nto hit edn backu pmarkerr edo duirng recvoery att he incranationb oundar,y hencem ay conatin chagnes disacrded b ynew inacrnatio.n
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Use oledr backpu of th efile adn then er-issuet he comamnd.
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.