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SQL Server 2016 Developer's Guide

You're reading from   SQL Server 2016 Developer's Guide Build efficient database applications for your organization with SQL Server 2016

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Product type Paperback
Published in Mar 2017
Publisher Packt
ISBN-13 9781786465344
Length 616 pages
Edition 1st Edition
Languages
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Authors (3):
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Dejan Sarka Dejan Sarka
Author Profile Icon Dejan Sarka
Dejan Sarka
 Radivojević Radivojević
Author Profile Icon Radivojević
Radivojević
William Durkin William Durkin
Author Profile Icon William Durkin
William Durkin
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Table of Contents (21) Chapters Close

SQL Server 2016 Developer's Guide
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
1. Introduction to SQL Server 2016 FREE CHAPTER 2. Review of SQL Server Features for Developers 3. SQL Server Tools 4. Transact-SQL Enhancements 5. JSON Support in SQL Server 6. Stretch Database 7. Temporal Tables 8. Tightening the Security 9. Query Store 10. Columnstore Indexes 11. Introducing SQL Server In-Memory OLTP 12. In-Memory OLTP Improvements in SQL Server 2016 13. Supporting R in SQL Server 14. Data Exploration and Predictive Modeling with R in SQL Server

Chapter 10. Columnstore Indexes

Analytical queries that scan huge amounts of data were always problematic in a relational database. Nonclustered balanced tree indexes are efficient for transactional queries seeks; however, they rarely help with analytical queries. A great idea occurred nearly 30 years ago: why do we need to store data physically in the same way we work with it logically—row by row? Why don't we store it column by column and transform columns back to rows when we interact with the data? Microsoft was playing with this idea for a long time and finally implemented it in SQL Server.

Columnar storage was first added to SQL Server in version 2012. It included nonclustered columnstore indexes (NCCI) only. Clustered columnstore indexes (CCI) were added in version 2014. In this chapter, the readers revise the columnar storage and then explore huge improvements for columnstore indexes in SQL Server 2016: updatable nonclustered columnstore indexes, columnstore indexes on in-memory tables...

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