Learn T-SQL Querying: A guide to developing efficient and elegant T-SQL code - Softcover

Lopes, Pedro; Lahoud, Pam

Softcover

ISBN 10: 1789348811 ISBN 13: 9781789348811

Publisher: Packt Publishing, 2019

Synopsis

Troubleshoot query performance issues, identify anti-patterns in code, and write efficient T-SQL queries

Key Features:

• Discover T-SQL functionalities and services that help you interact with relational databases
• Understand the roles, tasks, and responsibilities of a T-SQL developer
• Explore solutions for carrying out database querying tasks, database administration, and troubleshooting

Book Description:

Transact-SQL (T-SQL) is Microsoft's proprietary extension to the SQL language used with Microsoft SQL Server and Azure SQL Database. This book will be a usefu to learning the art of writing efficient T-SQL code in modern SQL Server versions as well as the Azure SQL Database.

The book will get you started with query processing fundamentals to help you write powerful, performant T-SQL queries. You will then focus on query execution plans and leverage them for troubleshooting. In later chapters, you will explain how to identify various T-SQL patterns and anti-patterns. This will help you analyze execution plans to gain insights into current performance, and determine whether or not a query is scalable. You will also build diagnostic queries using dynamic management views (DMVs) and dynamic management functions (DMFs) to address various challenges in T-SQL execution. Next, you will work with the built-in tools of SQL Server to shorten the time taken to address query performance and scalability issues. In the concluding chapters, this will guide you through implementing various features, such as Extended Events, Query Store, and Query Tuning Assistant, using hands-on examples.

By the end of the book, you will have developed the skills to determine query performance bottlenecks, avoid pitfalls, and discover the anti-patterns in use.

What You Will Learn:

• Use Query Store to understand and easily change query performance
• Recognize and eliminate bottlenecks that lead to slow performance
• Deploy quick fixes and long-term solutions to improve query performance
• Implement best practices to minimize performance risk using T-SQL
• Achieve optimal performance by ensuring careful query and index design
• Use the latest performance optimization features in SQL Server 2017 and SQL Server 2019
• Protect query performance during upgrades to newer versions of SQL Server

Who this book is for:

This book is for database administrators, database developers, data analysts, data scientists, and T-SQL practitioners who want to get started with writing T-SQL code and troubleshooting query performance issues with the help of practical examples. Previous knowledge of T-SQL querying is not required to get started with this book.

About this title

About the Authors

Pedro Lopes is a Program Manager in the Database Systems group, based in Redmond, WA, USA. He has over 19 years of industry experience and has been with Microsoft for 9 years. He is currently responsible for program management of Database Engine features for in-market and vNext versions of SQL Server, with a special focus on the Relational Engine. He has extensive experience with query performance troubleshooting and is a regular speaker at numerous conferences such as SQLBits, PASS Summit, SQLIntersection, Microsoft Ignite, and Microsoft Build. He blogs about SQL on the SQL Server Team blog. He has authored several tools in the Tiger toolbox on GitHub: AdaptiveIndexDefrag maintenance solution, BPCheck, and usp_WhatsUp.

Pam Lahoud is a Program Manager in the Database Systems group, based in Redmond, WA, USA. She has been with Microsoft for 13 years and is currently responsible for program management of Database Engine features for in-market and vNext versions of SQL Server, with a special focus on the Storage Engine area. She is passionate about SQL Server performance and has focused on performance tuning and optimization, particularly from the developer's perspective, throughout her career. She is a SQL Server 2008 Microsoft Certified Master (MCM) with over 20 years of experience working with SQL Server.

Edition details

• Publisher: Packt Publishing
• Publication date: 2019
• Language: English
• ISBN 10: 1789348811
• ISBN 13: 9781789348811
• Binding: Paperback
• Number of pages: 484