ORA-19860
        piece validation cannot be performed more than once
        
        
        Cause
        The user attempted to validate a list of backup pieces more than once. Validation may only be performed once for a given validation conversation.
        Action
        Do not attempt to validate the pieces more than once.
        
     
    
    
        ORA-19860
        piece validation cannot be performed more than once
        
        
        Cause
        The user attempted to validate a list of backup pieces more than once. Validation may only be performed once for a given validation conversation.
        Action
        Do not attempt to validate the pieces more than once.
        
     
    
    
        ORA-19860
        piece validation cannot be performed more than once
        
        
        Cause
        The user attempted to validate a list of backup pieces more than once. Validation may only be performed once for a given validation conversation.
        Action
        Do not attempt to validate the pieces more than once.