October 2011
Intermediate to advanced
688 pages
24h 5m
English
book
SQL Server MVP Deep Dives, Volume 2
by Brad McGehee, Louis Davidson, Greg Low, Kimberly Tripp, Paul S. Randal, Kalen Delaney, Paul Nielsen
Content preview from SQL Server MVP Deep Dives, Volume 2Become 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,
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.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.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.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.
Chapter 20. Death by UDF
Kevin Boles
When Microsoft released SQL Server 2000, developers around the world rejoiced at the introduction of user-defined functions (UDFs). They were finally able to, within their Transact-SQL code, adhere to two of the main developer mantras: code encapsulation and code reuse. But unfortunately scalar UDFs weren’t fully integrated into the SQL Server optimizer and relational engine. This resulted in a number of issues, some of which can lead to unbelievably horrible query performance. In this chapter I’ll focus on two of these issues: bad optimizer estimates and especially row-by-row query processing. I’ll use a variety of standard tuning devices, including STATISTICS IO output, query plan analysis, and Profiler ...
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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.