By indiana_joy
via sqlknowledgebank.blogspot.in
Submitted: Nov 22 2012 / 04:46
To improve the performance of the Query, the general guideline is not to prefer the "IN" Clause. The guideline of the MS SQL query performance says that if we needs "IN" clause, instead of using "IN" clause we must use the "EXISTS" clause. As the "EXISTS" clause improve the performance of the query. This article is related to "IN", "EXISTS" clause and their performance factors.
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