March 2018
Beginner to intermediate
638 pages
16h 29m
English
Content preview from Mastering Microsoft Power BI
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Columnstore and HTAP
Business intelligence queries generated from tools such as Power BI are more suited for columnar data stores and most DirectQuery source systems offer a columnar feature to deliver improved query performance. For Microsoft SQL Server, the columnstore index is recommended for large fact tables and this index eliminates the need to maintain traditional B-tree indexes or to apply row or page compression. Additionally, a combination of non-clustered columnstore indexes and in-memory table technologies can be used to support hybrid transactional and analytical processing (HTAP) workloads. For example, the Power BI queries against the DirectQuery dataset would utilize the columnstore index without impacting the OLTP workload ...
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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.