December 2013
Intermediate to advanced
1872 pages
153h 31m
English
book
Microsoft® SQL Server 2012 Unleashed
by Ray Rankins, Paul T. Bertucci, Chris Gallelli, Alex T. Silverstein
Content preview from Microsoft® SQL Server 2012 Unleashed
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Query Analysis
The first step in query optimization is to analyze each table in the query to identify all search arguments (SARGs), OR clauses, and join clauses. The SARGs, OR clauses, and join clauses are used in the second step, index selection, to select useful indexes to satisfy a query.