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)

Online index management

SQL Server 2019 introduces resumable online index creation in addition to rebuilding. The online option supports concurrent user access to the underlying table or index data during online index operations. Online index operations are recommended for business environments that require concurrent user activity during index operations for workloads that are online 24 hours a day and 7 days a week.

The ONLINE option is available in the following T-SQL statements:

  • CREATE INDEX
  • ALTER INDEX
  • DROP INDEX
  • ALTER TABLE (to add or drop UNIQUE or PRIMARY KEY constraints with the CLUSTERED index option)

When creating or rebuilding an index and the ONLINE option is set to ON, the underlying objects are available for querying and data modification. It is also possible to rebuild part of an index on a single partition.

Enabling online DML processing

To perform online index operations, the user requires ALTER permission on the table or view...