June 2015
Intermediate to advanced
1800 pages
70h 6m
English
book
Microsoft SQL Server 2014 Unleashed
by Ray Rankins, Paul Bertucci, Chris Gallelli, Alex T. Silverstein
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Join Processing Strategies
If you are familiar with SQL, you are probably very familiar with using joins between tables in creating SQL queries. A join occurs any time the SQL Server Query Optimizer has to compare two inputs to determine an output. The join can occur between one table and another table, between an index and a table, or between an index and another index (as described in the previous section).
The SQL Server Query Optimizer uses three primary types of join strategies when it must compare two inputs: nested loop joins, merge joins, and hash joins. The Query Optimizer must consider each one of these algorithms to determine the most appropriate and efficient algorithm for a given situation.
Each of the three supported join algorithms ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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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.