Fix- ORA-01578: ORACLE data block corrupted (file # 8, block # 13) ORA-01110

 If your data block is corrupted you will receive an error below.

Error:
ORA-01578: ORACLE data block corrupted (file # 8, block # 13)
ORA-01110: data file 8: ‘/oracle/oradata/users.dbf’
for recover data block;

$ rman target / catalog_user/catalog_user_password@catalogdb
RMAN>blockrecover datafile 8 block 13;

For Block-Level Media Recovery – Concept & Example To recover, we can give a specific backup set;

# recovery from backupset

RMAN> BLOCKRECOVER DATAFILE 8 BLOCK 13 DATAFILE 2 BLOCK 19 FROM BACKUPSET;

# recovery from image copy

RMAN> BLOCKRECOVER DATAFILE 8 BLOCK 13 DATAFILE 2 BLOCK 19
      FROM DATAFILECOPY;

# recovery from backupset which have "FULL" tag

RMAN> BLOCKRECOVER DATAFILE 8 BLOCK 13 DATAFILE 2 BLOCK 199
       FROM TAG = FULL;

During backup or “Validate Backup” command, RMAN finds corrupted blocks and writes to V$DATABASE_BLOCK_CORRUPTION view. When the RMAN recover the corrupt block then automatically updates this view. List of all the corruption of the past, can be viewed over V$BACKUP_CORRUPTION and V$COPY_CORRUPTION views.  If you run the following command,  RMAN will recover all the corrupted blocks in view V$DATABASE_BLOCK_CORRUPTION.

RMAN>BLOCKRECOVER CORRUPTION LIST
  RESTORE UNTIL TIME 'SYSDATE-10';