May 2006
Intermediate to advanced
536 pages
15h 13m
English
Content preview from Inside Microsoft® SQL Server™ 2005Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Compilations, Recompilations, and Reuse of Execution Plans
Earlier I mentioned that when you create a stored procedure, SQL Server parses your code and then attempts to resolve it. If resolution was deferred, it will take place at first invocation. Upon first invocation of the stored procedure, if the resolution phase finished successfully, SQL Server analyzes and optimizes the queries within the stored procedure and generates an execution plan. An execution plan holds the instructions to process the query. These instructions include which order to access the tables in; which indexes, access methods, and join algorithms to use; whether to spool interim sets; and so on. SQL Server typically generates multiple permutations of execution plans and ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.