This practical book provides a comprehensive overview of troubleshooting and performance tuning best practices for Microsoft SQL Server. Database engineers, including database developers and administrators, will learn how to identify performance issues, troubleshoot the system in a holistic fashion, and properly prioritize tuning efforts to attain the best system performance possible. Author Dmitri Korotkevitch, Microsoft Data Platform MVP and Microsoft Certified Master (MCM), explains the interdependencies between SQL Server database components. You'll learn how to quickly diagnose your system and discover the root cause of any issue. Techniques in this book are compatible with all versions of SQL Server and cover both on-premises and cloud-based SQL Server installations. Discover how performance issues present themselves in SQL Server - Learn about SQL Server diagnostic tools, methods, and technologies - Perform health checks on SQL Server installations - Learn the dependencies between SQL Server components - Tune SQL Server to improve performance and reduce bottlenecks - Detect poorly optimized queries and inefficiencies in query execution plans - Find inefficient indexes and common database design issues - Use these techniques with Microsoft Azure SQL databases, Azure SQL Managed Instances, and Amazon RDS for SQL Server "A great collection of techniques, tips, and scripts to deal with problems in both reactive and proactive ways. I wish I'd had a book like this 25 years ago when I started working with SQL Server." - Thomas Grohser (SQL Server Infrastructure Architect). "Ah, "Advanced", you say, "I will know everything!". But don't be lured. SQL Server is a very complex product, and to tell you everything the author would have had to make the book 6-8 times thicker, at least. But you get a head start in learning how to troubleshoot common situations, with lots of scripts you can use - out of the box, or refine to match your actual situation." - Erland Sommarskog (Indendent SQL Server Consultant). "I've written detailed reviews of more than 100 SQL Server books. This book provides the most complete and up-to-date approach to understanding SQL Server performance problems, together with essential advice on how to fix them. Get this book and solve your performance problems today!" - Ian Stirk (SQL Server Consultant). Dmitri Korotkevitch is a Microsoft Data Platform MVP and Microsoft Certified Master (SQL Server) with years of IT experience, including working with Microsoft SQL Server as an application and database developer, database administrator, and database architect. Dmitri specializes in the design, development, and performance tuning of complex OLTP systems that handle thousands of transactions per second around the clock. Currently, he leads the Database Services team at Chewy and he provides SQL Server consulting services and training to clients around the world.