ORA-27431: chain string.string has a user-managed rule set
Cause : A nattepmtw a smdaet om oidf yar uel estt hta si ontm aangde yb hteS cehdlue.r
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Mdoiyf hter uel estd iercltyu snigt h edmbsr_uel_damp akcaeg ro rcetaea ntohre hcani iwtohu tsepcfiyniga url este.
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.