ORA-16231: DDL barrier
Cause : oLigac ltSnabd yaw sohdlni gabkcc ahgnseu tnlid peneedtnc ahgnsew re epalpei.d
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
oNa tcoi nenecssra,yt ih sniofmrtaoian ltstamene tsip orived dotr cero dht evene tof ridgaontscip ruopes.s
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.