SQL Server introduced the Query Store in Azure SQL Database and then released it on the main boxed production in SQL Server 2016. The Query Store changes the way you monitor performance on your databases and the way you tune the performance of those same databases. This book represents a deep dive into a large number of topics in and around the Query Store. Reading this book will help you better understand how the Query Store works and the various ways you can use it in order to make your queries run faster.