November 2013
Intermediate to advanced
982 pages
34h 23m
English
book
Microsoft SQL Server 2012 Internals
by Bob Beauchemin Kalen Delaney Conor Cunningham, Jonathan Kehayias, Benjamin Nevarez, and Paul S. Randal
Content preview from Microsoft SQL Server 2012 InternalsBecome 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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Objects in plan cache: the big picture
In addition to the DMVs discussed so far, another metadata object called syscacheobjects really is just a pseudotable. No DMVs existed prior to SQL Server 2005, but SQL Server did have about half a dozen pseudotables, including sysprocesses and syslockinfo, that took no space on disk and were materialized only when someone executed a query to access them, similarly to the way that DMVs work. These objects are still available in SQL Server 2012. In SQL Server 2000, the pseudotables were available only in the master database, or by using a full object qualification when referencing them. In SQL Server 2012, you can access syscacheobjects from any database using only the sys schema as a qualification. Table 12-4 ...
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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.