DB2 and Nulls are Much Ado About Nothing
TDAN
DECEMBER 14, 2021
A null represents missing or unknown information at the column level. A null is not the same as 0 (zero) or blank. Null means “no entry”, means “has been made for the column” and it implies that the value is either unknown or not applicable. DB2 supports null, and as such, you can use null […].
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