ORA-25326: Array string operation failed for message at index string
Cause : Array operation fails for the message at specified index. Look at the remainder of the error stack to see what the problem was.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Fix cause of error and retry array operation.
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.