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56.
What is REORG? When is it used?

REORG reorganizes data on physical storage to reclutser rows, positioning overflowed rows in their proper sequence, to reclaim space, to restore free space. It is used after heavy updates, inserts and delete activity and after segments of a segmented tablespace have become fragmented.

57.
What is IMAGECOPY?

It is full backup of a DB2 table which can be used in recovery.

58.
When do you use the IMAGECOPY?

To take routine backup of tables

After a LOAD with LOG NO

After REORG with LOG NO

59.
What is COPY PENDING status?

A state in which, an image copy on a table needs to be taken, In this status, the table is available only for queries. You cannot update this table. To remove the COPY PENDING status, you take an image copy or use REPAIR utility.

60.
WWhat is CHECK PENDING?

When a table is LOADed with ENFORCE NO option, then the table is left in CHECK PENDING status. It means that the LOAD utility did not perform constraint checking.