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Can you please help me to get the answers of below questions.
1.What’s the asynchronus prefetch ? How it is helping in performance enhance?
2.Apart from query plans, What else resides in proc cache ?
1. It improves performance by anticipating the pages required for some db activities whose patterns are predictable as the IO request for these pages are issued before the query needs them so that most pages are in cache by the time query processing needs to access the page.