ORA-28311
        Oracle encrypted data block not encrypted (file # string, block # string)
        
        
        Cause
        The indicated data block was found unencrypted in a fully encrypted tablespace.  The exact cause is unknown. Possible causes could be:
- An encrypted data block is tampered and replaced with an unencrypted data block.
- An Oracle internal issue.
        Action
        Collect block dump and redo dump for this block, and contact Oracle Support Services.
        
     
    
    
        ORA-28311
        Oracle encrypted data block not encrypted (file # string, block # string)
        
        
        Cause
        The indicated data block was found unencrypted in a fully encrypted tablespace.  The exact cause is unknown. Possible causes could be:
- An encrypted data block is tampered and replaced with an unencrypted data block.
- An Oracle internal issue.
        Action
        Collect block dump and redo dump for this block, and contact Oracle Support Services.
        
     
    
    
        ORA-28311
        Oracle encrypted data block not encrypted (file # string, block # string)
        
        
        Cause
        The indicated data block was found unencrypted in a fully encrypted tablespace.  The exact cause is unknown. Possible causes could be:
- An encrypted data block is tampered and replaced with an unencrypted data block.
- An Oracle internal issue.
        Action
        Collect block dump and redo dump for this block, and contact Oracle Support Services.