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SQL queries dont use indexes the first time its executed in 3-tier via application server

edited Dec 17, 2015 10:15AM in SQL Performance (MOSC) 1 commentAnswered

The queries perform fine in 2-tier and use the right indexes.. When executed via application in 3 tier (web/app/db), the queries dont use the index the first time but start using it afterwards.

Can you please let me know why this happens?

I am attaching a document for your reference.

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