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Message Posted: Mon, 28 Mar 2011 @ 15:20:50 GMT


     
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Subj:   Re: Compress a column and why?
 
From:   rakeshbabu.g

The COMPRESS phrase allows values in one or more columns of a permanent table to be compressed to zero space, thus reducing the physical storage space required for a table.

The COMPRESS phrase has three variations:

COMPRESS---> Nulls are compressed.

COMPRESS NULL---> Nulls are compressed.

COMPRESS --->Nulls and the specified value are compressed.


COMPRESS & COMPRESS NULL mean the same thing.



     
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