March 2009
Intermediate to advanced
784 pages
30h 30m
English
book
Microsoft® SQL Server® 2008 Internals
by Paul Randal Kalen Delaney Kimberly Tripp, and Conor Cunningham
Content preview from Microsoft® SQL Server® 2008 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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Large Object Storage
SQL Server 2008 has two special formats for storing data that doesn’t fit on the regular 8-KB data page. These formats allow you to have rows that exceed the maximum row size of 8,060 bytes. As discussed previously, this maximum row size value includes several bytes of overhead stored with the row on the physical pages, so the total size of all the table’s defined columns must be slightly less than this amount. In fact, the error message that you get if you try to create a table with more bytes than the allowable maximum is very specific. If you execute the following CREATE TABLE statement with column definitions that add up to exactly 8,060 bytes, you’ll get the error message shown here:
USE test; CREATE TABLE dbo.bigrows_fixed ...
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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.