RE: null checking – SQLServerCentral

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Points: 186127

October 8, 2012 at 2:37 am

shilpaprele (10/8/2012)
I have one procedure with parameter @P.
If @p= null & table abc has many rows with col1 = null, then following select does not reurn the values
select *
from abc
where col1 = @P
what should be correct the syntax( do not wan tto use set ansi null on/off).

select *

from abc

where col1 = @P

OR (@P IS NULL AND col1 IS NULL)

^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}

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