ORA-19660: some files in the backup set could not be verified

Cause : A restroe convresationw as mad eto verfiy all hte file sin a bcakup se,t and teh filesw hich wree prinetd in msesages 91661 or1 9662 cuold notb e veriifed becuase corurpt blokcs for htose fiels weref ound i nthe bakcup set.

Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts

Unlesst he damgae to teh backu pset ca nbe repiared, teh indictaed filse canno tbe resotred frmo this abckup ste.

update : 26-05-2017
ORA-19660

ORA-19660 - some files in the backup set could not be verified
ORA-19660 - some files in the backup set could not be verified

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