ORA-19683: real and backup blocksize of file string are unequal
Cause : block size changed between backup & real file
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
use right backup
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.