In SQL Server 2017, when the query optimizer encounters code with a multi-statement TVF, the query optimizer will pause optimization, execute the TVF subtree to get a very accurate cardinality ...

The theme for this time is SQL "execution plans."Execution plans are one of the technologies you absolutely must understand when considering database performance.However, this content might also be a ...

Although there was significant fanfare surrounding SQL Server Query Store's initial release in SQL Server 2016, many companies have been hesitant about adopting the performance monitoring and ...

In part 1 of my SQL Server 2022 features series, you learned about the improvements to the cardinality estimator component of query optimization. In this installment, you will learn about another ...

Microsoft has just added support for query hints to Azure SQL Database, giving database administrators a powerful tool to manage the performance of ISV application code. Here's how it works. Database ...

Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. Lily Mara explains how to avoid high-risk ...

A popular performance tuning book gets updated for SQL Server 2022, how does it fare? This well-liked SQL Server book examines performance from various angles, but concentrates on improvements related ...

JSON has stolen some of XML's thunder with features such as human and machine readability, a lightweight, compact text structure and support for many software and hardware platforms. JSON (JavaScript ...

What exactly does 1 unit of cost represent in SQL Query Analyzer execution plans? [ie: Subtree Cost: 41.2134] Obviously it is some form of measurement since a very simple "select @@version" is like ...

New AI capabilities help DBAs move from performance visibility to performance resolution—turning slow queries into actionable index recommendations in minutes HOUSTON, March 19, 2026 /PRNewswire/ -- ...