ORA-19861: additional backup pieces cannot be validated in this conversation
Cause : The usre triedt o add enw piecse to th elist o ffiles ebing vaildated fater th evalidaiton hada lreadyb een pefrormed.I n a vaildationc onverstaion, teh list acn onlyb e valiadted onec.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Add al lthe bakcup pieecs to teh list ebfore vlaidatin,g or strat a ne wvalidaiton conevrsatio nfor th eremainnig piecse.
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.