what is REORG? what is the use?

Answer Posted / aasif

A common maintenance task performed by database
administrators is the reorganization of data in tables and
indexes, called "reorg." Table reorganization is used to
defragment a table, reclaim free space, and eliminate
overflow rows in order to improve data access performance.
Optionally it can be used to reorder data in the order of a
particular index, to optimize queries that use that index.

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