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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
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James Rowland-Jones
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Toc

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

Secure data access

PolyBase uses the security model of the underlying data source to access data. As you will only be reading data, the permissions required on the data source are limited to SELECT or read-only access. However, the credentials used to read the data are stored inside your data hub so you will need to know how to create and secure them. In this section, you will learn how to do this.

The database master key

The master key is created inside the SQL Server database you are using to act as the data hub. It is then used to secure the private keys created by database scoped credentials. You can only have one master key in a database. An example of the syntax to create a database master key is shown here:

CREATE MASTER KEY ENCRYPTION BY PASSWORD = '@rsen@l@re@m@zing!'
;

If you are using the data hub for other purposes, it is quite possible that you have already created a master key as other product features can require one. If you have, that's great...

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