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Introducing Microsoft SQL Server 2019

You're reading from   Introducing Microsoft SQL Server 2019 Reliability, scalability, and security both on premises and in the cloud

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Product type Paperback
Published in Apr 2020
Publisher Packt
ISBN-13 9781838826215
Length 488 pages
Edition 1st Edition
Languages
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Authors (8):
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Allan Hirt Allan Hirt
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Allan Hirt
Dustin Ryan Dustin Ryan
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Dustin Ryan
Mitchell Pearson Mitchell Pearson
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Mitchell Pearson
Kellyn Gorman Kellyn Gorman
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Kellyn Gorman
Dave Noderer Dave Noderer
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Dave Noderer
Buck Woody Buck Woody
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Buck Woody
Arun Sirpal Arun Sirpal
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Arun Sirpal
James Rowland-Jones James Rowland-Jones
Author Profile Icon James Rowland-Jones
James Rowland-Jones
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Table of Contents (15) Chapters Close

Preface 1. Optimizing for performance, scalability and real‑time insights 2. Enterprise Security FREE CHAPTER 3. High Availability and Disaster Recovery 4. Hybrid Features – SQL Server and Microsoft Azure 5. SQL Server 2019 on Linux 6. SQL Server 2019 in Containers and Kubernetes 7. Data Virtualization 8. Machine Learning Services Extensibility Framework 9. SQL Server 2019 Big Data Clusters 10. Enhancing the Developer Experience 11. Data Warehousing 12. Analysis Services 13. Power BI Report Server 14. Modernization to the Azure Cloud

What About Database Mirroring and Replication?

Database Mirroring (DBM) was deprecated in SQL Server 2012. Its official replacement is AGs and they were documented as such when SQL Server 2016 introduced basic Availability Groups and the ability to use AGs with certificates. While DBM still ships as part of SQL Server 2019 for Windows Server (not Linux), it should not be used for new deployments. Microsoft often no longer removes deprecated features. Customers upgrading from previous versions of SQL Server, where DBM was the main business continuity strategy, should migrate to AGs.

Replication is not an official business continuity feature in the same way that AGs, FCIs, and log shipping are. However, it can be used to enhance the availability of data and many still use it in this capacity. Consider a scenario where executives need access to data. They may not need the whole database, but a subset. Replication enables this scenario – the schema can be different, have a different...

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