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D, IS Null
Guys,
I am adapting the below code and i understand what it is doing with the exception of the d, ISNULL. Can someone help explain what this is doing?
[code language="sql"][/code]
I am adapting the below code and i understand what it is doing with the exception of the d, ISNULL. Can someone help explain what this is doing?
[code language="sql"][/code]
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