SQL Server network latency can make a fast database look slow. An application that fetches 4,000 orders one query at a time pays for every round trip. I measured the loop against one query, tested what ASYNC_NETWORK_IO means, and show how to check your own round trip time.
tempdb Space Resource Governance in SQL Server 2025
tempdb space resource governance in SQL Server 2025 caps how much tempdb one Resource Governor group can fill. This post builds a capped group on a test server, fills tempdb with a temp table and a sort spill, shows error 1138 and the group counters, and cleans everything up.
SQL SERVER – An In-Depth Look at MIXED_PAGE_ALLOCATION and Changes in Page Allocation
This article takes a deep dive into these modifications, with a particular focus on the MIXED_PAGE_ALLOCATION property.
SQL SERVER – Scripts to Retrieve Column Names
Understanding how to retrieve column names from a table is one of the fundamental operations you should be familiar with.
SQL Server 2022 – Degree of Parallelism (DOP) Feedback for Optimize Query Performance
SQL Server 2022 introduces a powerful new feature called Degree of Parallelism (DOP) feedback as part of the Intelligent Query Processing (IQP).
Understanding SQL Server Deadlocks: A Beginner’s Guide
Welcome to this introductory blog post on SQL Server Deadlocks. In this post, we’ll help you understand what deadlocks are, and how they occur.
Implicit Transactions in SQL Server: The Setting That Leaves Work Open
Implicit transactions make SQL Server open a transaction on the first data statement and keep it open until a COMMIT or ROLLBACK. This post shows what starts one, how @@TRANCOUNT counts it, why a second session waits, and how to find and clear the sessions that left work open.