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DB2 - How does DB2 store NULL physically?




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asked mar September 9, 2014 12:44 PM  

How does DB2 store NULL physically?


           

1 Answers



 
answered By Mswami   0  

As an extra-byte prefix to the column value. physically, the null prefix is Hex ’00’ if the value is present and Hex ‘FF’ if it is not.

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