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SQL Server 2016 Developer's Guide

SQL Server 2016 Developer's Guide

By : Dejan Sarka, Miloš Radivojević, William Durkin
4.5 (8)
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SQL Server 2016 Developer's Guide

SQL Server 2016 Developer's Guide

4.5 (8)
By: Dejan Sarka, Miloš Radivojević, William Durkin

Overview of this book

Microsoft SQL Server 2016 is considered the biggest leap in the data platform history of the Microsoft, in the ongoing era of Big Data and data science. This book introduces you to the new features of SQL Server 2016 that will open a completely new set of possibilities for you as a developer. It prepares you for the more advanced topics by starting with a quick introduction to SQL Server 2016's new features and a recapitulation of the possibilities you may have already explored with previous versions of SQL Server. The next part introduces you to small delights in the Transact-SQL language and then switches to a completely new technology inside SQL Server - JSON support. We also take a look at the Stretch database, security enhancements, and temporal tables. The last chapters concentrate on implementing advanced topics, including Query Store, column store indexes, and In-Memory OLTP. You will finally be introduced to R and learn how to use the R language with Transact-SQL for data exploration and analysis. By the end of this book, you will have the required information to design efficient, high-performance database applications without any hassle.
Table of Contents (15 chapters)
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12
12. In-Memory OLTP Improvements in SQL Server 2016

Query Store reports in SQL Server management studio

In the previous section, you saw that migration to SQL Server 2016 can lead to performance regressions for some database queries. In this example, you had only one query and since the regression was significant, you could immediately detect it; you did not need help from Query Store. However, in the production system, you could have hundreds or thousands of queries, and you will not be able to check them to see if they perform well after migration. To find regressed queries or queries that are consuming most server resources, you can use the Query Store reports.

When Query Store is enabled for a database, in the Object Explorer of the SQL Server management studio you can find a new node Query Store for this database. When you expand the node, you can find four reports under it:

  • Regressed queries
  • Top resource consuming queries
  • Overall resource consumption
  • Tracked queries

You have already seen the report Tracked Queries in action; here we will...

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SQL Server 2016 Developer's Guide
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