How Does Db2 Store Null Physically?

1.	How Does Db2 Store Null Physically?
Answer» 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. 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.

Answer»

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.

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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