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)

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...