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SQL Server 2017 Developer???s Guide

You're reading from   SQL Server 2017 Developer???s Guide A professional guide to designing and developing enterprise database applications

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Product type Paperback
Published in Mar 2018
Publisher Packt
ISBN-13 9781788476195
Length 816 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
Miloš Radivojević Miloš Radivojević
Author Profile Icon Miloš Radivojević
Miloš Radivojević
William Durkin William Durkin
Author Profile Icon William Durkin
William Durkin
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Toc

Table of Contents (19) Chapters Close

Preface 1. Introduction to SQL Server 2017 FREE CHAPTER 2. Review of SQL Server Features for Developers 3. SQL Server Tools 4. Transact-SQL and Database Engine Enhancements 5. JSON Support in SQL Server 6. Stretch Database 7. Temporal Tables 8. Tightening Security 9. Query Store 10. Columnstore Indexes 11. Introducing SQL Server In-Memory OLTP 12. In-Memory OLTP Improvements in SQL Server 2017 13. Supporting R in SQL Server 14. Data Exploration and Predictive Modeling with R 15. Introducing Python 16. Graph Database 17. Containers and SQL on Linux 18. Other Books You May Enjoy

Stretch DB architecture


When you enable Stretch Database for an on-premise SQL Server 2017 database, SQL Server automatically creates a new stretch database in MS Azure SQL Database as an external source and a remote endpoint for the database.

When you query the database, the SQL Server's database engine runs the query against the local or remote database, depending on the data location. Queries against stretch-enabled tables return both local and remote data by default. This is completely transparent to the database user. This means that you can use Stretch Database without changing Transact-SQL code in your queries, procedures, or applications. You can stretch an entire table or a portion of table data. The data migration is done asynchronously and transparently. In addition, Stretch Database ensures that no data is lost if a failure occurs during migration. It also has retry logic to handle connection issues that may occur during migration. The following figure illustrates the Stretch...

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