September 2007
Intermediate to advanced
448 pages
13h 52m
English
book
Inside Microsoft® SQL Server™ 2005: Query Tuning and Optimization
by Kalen Delaney, Sunil Agarwal, Craig Freedman, Ron Talmage, Adam Machanic
Content preview from Inside Microsoft® SQL Server™ 2005: Query Tuning and Optimization
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Objects in Plan Cache: The Big Picture
In addition to the Dynamic Management Views and Functions discussed so far, there is another metadata object called syscacheobjects that is really just a pseudotable. Prior to SQL Server 2005, there were no Dynamic Management Objects, but we did have about half a dozen of these pseudotables, including sysprocesses and syslockinfo that took no space on disk and were materialized only when someone executed a query to access them, in a similar manner to the way that Dynamic Management Objects work. These objects are still available in SQL Server 2005. In SQL Server 2000, the pseudotables are available only in the master database, or by using a full object qualification when referencing them. In SQL Server ...
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