ORA-01578
        ORACLE data block corrupted (file # string, block # string)
        
        
        Cause
        The data block indicated was corrupt. This was a physical corruption, also called a media corruption. The cause is unknown but is most likely external to the database. If ORA-26040 is also signaled, the corruption is due to NOLOGGING or UNRECOVERABLE operations.
        Action
        The general method to repair a media corrupt block is to restore a backup and recover the backup. For databases in ARCHIVELOG mode, use block media recovery or media recovery. In some situations, you can also drop the segment and re-create it. For example, you can drop an index and re-create the index.
        
     
    
    
        ORA-01578
        ORACLE data block corrupted (file # string, block # string)
        
        
        Cause
        The data block indicated was corrupt. This was a physical corruption, also called a media corruption. The cause is unknown but is most likely external to the database. If ORA-26040 is also signaled, the corruption is due to NOLOGGING or UNRECOVERABLE operations.
        Action
        The general method to repair a media corrupt block is to restore a backup and recover the backup. For databases in ARCHIVELOG mode, use block media recovery or media recovery. In some situations, you can also drop the segment and re-create it. For example, you can drop an index and re-create the index.
        
     
    
    
        ORA-01578
        ORACLE data block corrupted (file # string, block # string)
        
        
        Cause
        The data block indicated was corrupt. This was a physical corruption, also called a media corruption. The cause is unknown but is most likely external to the database. If ORA-26040 is also signaled, the corruption is due to NOLOGGING or UNRECOVERABLE operations.
        Action
        The general method to repair a media corrupt block is to restore a backup and recover the backup. For databases in ARCHIVELOG mode, use block media recovery or media recovery. In some situations, you can also drop the segment and re-create it. For example, you can drop an index and re-create the index.