RE: how to handled Nulls and empty values in sql server

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October 18, 2013 at 3:56 pm

jonysuise (10/18/2013)
Hi asranantha, 😀
I would use COALESCE AND CASE, because it's SQL standard.

I would use just ISNULL AND NULLIF (like Sean did) because you don't have unexpected datatype precedence problems with ISNULL like you can with COALESCE, is a tiny bit faster than COALESCE, takes fewer characters to type, and it ticks all sorts of people off that still think SQL is portable across engines. 😀

--Jeff Moden

RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

Change is inevitable... Change for the better is not.

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