The way you write a query directly impacts how SQL Server processes it. For example, selecting only ... of the cardinality of your data. Query optimization is a must if you want your query results ...

The techniques included here are not only theoretical but also practical, allowing users to implement them directly in their SQL Server environments. From indexing and query optimization ...

For example, LEFT JOINs can ... AUTO_UPDATE_STATISTICS option to let SQL Server manage statistics updates automatically. Testing is crucial in query optimization, yet it's common to see ...

The process of query optimization is very computationally expensive. For this reason, SQL Server stores execution ... that was initially passed in. For example: The execution plan would get ...

📌 In this series of posts, I will explore various ways to optimize SQL queries, from refining the query structure itself to designing tables that enhance performance. Each "episode" will feature a ...

As you progress, you’ll get practical query optimization tips for troubleshooting underperforming queries. The book will also guide you through intelligent query processing and what is new in SQL ...

Query optimization for such system is a challenging and important problem. In this paper we describe the Query Optimizer inside the SQL Server Parallel Data Warehouse product (PDW QO). We leverage ...

In the example shown above, we are using a query hint to disallow batch mode and also telling SQL Server to recompile the query on ... If a query hint contradicts what is possible for query ...