different where conditions with isnull in sql server
http://use-the-index-luke.com/sql/where-clause/obfuscation/smart-logic
http://www.sommarskog.se/dyn-search.html
http://sqlblog.com/blogs/hugo_kornelis/archive/2007/09/30/what-if-null-if-null-is-null-null-null-is-null.aspx
http://use-the-index-luke.com/sql/where-clause/obfuscation/smart-logic
http://www.sommarskog.se/dyn-search.html
http://sqlblog.com/blogs/hugo_kornelis/archive/2007/09/30/what-if-null-if-null-is-null-null-null-is-null.aspx
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