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,
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Chapter 49. Late-arriving dimensions in SSIS
John Welch
SQL Server Integration Services (SSIS) is a great tool for populating data warehouses. Straightforward, common approaches in data warehousing are easy to implement. But certain scenarios can be more complex to implement using SSIS, particularly if you’re moving a lot of data and have aggressive performance requirements. Late-arriving dimensions are one of those scenarios.
Late-arriving dimensions (sometimes called early-arriving facts) occur when you have dimension data arriving in the data warehouse later than the fact data that references that dimension. This chapter discusses several options for handling late-arriving dimensions in SSIS.
A late-arriving dimension scenario
In the ...
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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.