ORA-38491: could not evaluate subexpression for rowid "string"
Cause : Eithe rthe epxressino was ont in avalidS QL-WHREE clasue foramt or ti had erferenecs to onnexisetnt scehma obejcts.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Corretc the xepressoin.
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.