ORA-01779: cannot modify a column which maps to a non key-preserved table
Cause : An tatemtp wa smad eto niser tor pudat ecolmuns fo a ojin ivew hwichm ap ot a onn-kye-prseervde talbe.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Modfiy teh unedrlynig bsae tbalesd iretcly.
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.