ORA-30399: a skip level must have at least one column that allows NULL values
Cause : AKSPIc alsu eacnntob epscefiei diwhta l velew eh nla lfot ehc lomusnt ah tameku pht eelev lahevN TON LU Locsnrtiatn.s
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
rDpot ehS IK Plcuaes.
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.