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Microsoft® SQL Server 2008 R2 Unleashed
book

Microsoft® SQL Server 2008 R2 Unleashed

by Ray Rankins, Paul Bertucci, Chris Gallelli, Alex T. Silverstein
September 2010
Intermediate to advanced content levelIntermediate to advanced
1704 pages
111h 8m
English
Sams
Content preview from Microsoft® SQL Server 2008 R2 Unleashed

Logical and Physical Operator Icons

If you want to better understand the graphical execution plans displayed in SSMS, it helps to be able to recognize what each of the displayed icons represents. Recognizing them is especially valuable when you need to quickly locate operations that appear out of place for the type of query being executed. The following sections cover the more common logical and physical operators displayed in the Query Analyzer execution plans.

Assert image

Assert is used to verify a condition, such as referential integrity (RI) or check constraint, or to ensure that a scalar subquery returns only a single row. It acts as sort of ...

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Publisher Resources

ISBN: 9780768696585Purchase book