September 2009
Intermediate to advanced
832 pages
23h 31m
English
book
Inside Microsoft® SQL Server® 2008: T-SQL Programming
by Dejan Sarka Itzik Ben-Gan Greg Low, Roger Wolter, Ed Katibah, and Isaac Kunen
Content preview from Inside Microsoft® SQL Server® 2008: T-SQL ProgrammingBecome 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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Chapter 7. Temporary Tables and Table Variables
Itzik Ben-Gan
T-SQL programming often involves the need to materialize data temporarily. Temporary tables are just one solution; other ways for handling an independent physical or logical materialization of a set include table variables and table expressions such as views, inline user-defined functions (UDFs), derived tables, and common table expressions (CTEs).
You might need to physically persist interim states of your data for performance reasons, or just as a staging area. Examples of such scenarios include:
Materializing aggregated data to some level of granularity (for example, employee and month), and issuing running, sliding, and other statistical reports against that data
Materializing a result ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.