IS NULL in a where claus
That a typical problem you see with catch all queriesseehttp://sqlinthewild.co.za/index.php/2009/03/19/catch-all-queries/Please Mark This As Answer if it solved your issue Please Vote This As Helpful...
View ArticleIS NULL in a where claus
You really want to read this:http://www.sommarskog.se/dyn-search.htmlTibor Karaszi, SQL Server MVP | web | blog
View ArticleIS NULL in a where claus
IF @MyParam IS NOT NULLWHERE MyColumn=@MyParamhttp://www.sommarskog.se/dyn-search.htmlBest Regards,Uri Dimant SQL Server MVP,http://sqlblog.com/blogs/uri_dimant/ MS SQL optimization: MS SQL Development...
View ArticleIS NULL in a where claus
Kimberly Tripp from SQLSKILLS wrote a post on this topic. You will find the best advice on this topic.http://www.sqlskills.com/blogs/kimberly/high-performance-procedures/
View ArticleIS NULL in a where claus
That is very helpful! And it's the first time I've seen someone recommend dynamic SQL to improve performance.Now if you'll excuse me, I need to grab a large stiff drink and start writing some ugly SQL.
View ArticleIS NULL in a where claus
I prefer the first one. I have tested 1&2 with the same data and found the 1st one better option.I don't prefer dynamic queries but, you can have a look into the below...
View ArticleIS NULL in a where claus
There's really no significant performance difference between ISNULL() and the methods in my examples. It seems that any checks for a null parameter impacts performance.
View ArticleIS NULL in a where claus
When building stored procs, I typically have several nullable parameters. Then in the where clause I will either do thisWHERE (@MyParam IS NULL OR MyColumn = @MyParam)or this:WHERE MyColumn =...
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