Book Image

Introducing Microsoft SQL Server 2019

By : Kellyn Gorman, Allan Hirt, Dave Noderer, Mitchell Pearson, James Rowland-Jones, Dustin Ryan, Arun Sirpal, Buck Woody
Book Image

Introducing Microsoft SQL Server 2019

By: Kellyn Gorman, Allan Hirt, Dave Noderer, Mitchell Pearson, James Rowland-Jones, Dustin Ryan, Arun Sirpal, Buck Woody

Overview of this book

Microsoft SQL Server comes equipped with industry-leading features and the best online transaction processing capabilities. If you are looking to work with data processing and management, getting up to speed with Microsoft Server 2019 is key. Introducing SQL Server 2019 takes you through the latest features in SQL Server 2019 and their importance. You will learn to unlock faster querying speeds and understand how to leverage the new and improved security features to build robust data management solutions. Further chapters will assist you with integrating, managing, and analyzing all data, including relational, NoSQL, and unstructured big data using SQL Server 2019. Dedicated sections in the book will also demonstrate how you can use SQL Server 2019 to leverage data processing platforms, such as Apache Hadoop and Spark, and containerization technologies like Docker and Kubernetes to control your data and efficiently monitor it. By the end of this book, you'll be well versed with all the features of Microsoft SQL Server 2019 and understand how to use them confidently to build robust data management solutions.
Table of Contents (15 chapters)

Spatial data types

Spatial data types are used to work with mapping systems. There are two broad categories, geometry and geography. This discussion is focused on geography. You may need more general and flexible geometry options, especially if you are not specifically looking for a physical mapping capability.

Two new spatial reference identifiers (SRIDs) are available in SQL Server 2019. These Australian GDA2020 identifiers provide more accurate data for the Australian continent and are closely aligned with the latest GPS satellites (GNSS). For more information on these particular identifiers, go to http://www.ga.gov.au/scientific-topics/positioning-navigation/geodesy/datums-projections/gda2020.

Why spacial data types?

For any spacial or geometry calculations on spheres, such as the Earth, spacial data types allow easy calculation of distances and other calculations in a T-SQL query.

Which spatial identifier you use will depend on your location and your needs. Each identifier...