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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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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

JSON

JSON support was first added to SQL Server 2016. Two functions support JSON, OPENJSON for parsing incoming data and FOR JSON for outputting JSON formatted data.

Why use JSON?

JavaScript Object Notation (JSON), is a text representation that's used to store and share data. JSON is standard in web applications of all kinds. It is the native format of JavaScript objects and is purely text. Using native JSON within SQL Server can make interfaces easier to use and make the handling of NoSQL, changing schemas, and RESTful data from the web much easier.

For example, an order from an e-commerce site or an Internet of Things (IoT) device might arrive on the server as a JSON-formatted string. You can write this "blob" of data into a database field and delay parsing it until later.

Another benefit for an order system would be to preserve the original order as is, as compared to a relational form where related data might change over time.

JSON consists of simple...

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