SQL Server Performance & Troubleshooting – Where Milliseconds Matter 🚀

Before we dive into today's topic, if you missed my previous post you can take a look at SQL SERVER 2025 Optional Parameter Plan Optimization (OPPO) . 👉 If you found this deep-dive helpful, feel free to check out the ads—your support helps me keep creating high-quality SQL Server content for the community. SQL Server 2025 CU5 fixes EntryPointNotFoundException for GetNumaNodeProcessorMask2 💣 SQL Server setup crashes on older Windows versions? ⚡ CU5 fixes a nasty EntryPointNotFoundException tied to NUMA APIs and legacy operating systems. 🧠 TL;DR BOX ✔️ SQL Server 2025 CU5 fixes EntryPointNotFoundException for GetNumaNodeProcessorMask2 ⚡ ✔️ The issue occurs during SQL Server setup on unsupported or older Windows operating systems 💣 ✔️ The root cause is a missing Windows Kernel32 NUMA API function 🔍 ✔️ You can detect the problem immediately using a simple PowerShell API test 🧪 ⚡ The Hook In this post, I’ll show you why SQL Server 2025 CU5 fixes...

Before we dive into today's topic, if you missed my previous post you can take a look at SQL SERVER 2025 CU5 (Cumulative Update 5) Is OUT! A Hot Take on the New Features for DBAs 👉 If you found this deep-dive helpful, feel free to check out the ads—your support helps me keep creating high-quality SQL Server content for the community. SQL SERVER 2025 Optional Parameter Plan Optimization (OPPO) What It Is and Benchmarks — Internal Part 1 Series ⚡ SQL Server 2025 finally attacks one of the oldest performance killers: optional parameter queries and unstable execution plans. 🧠 In this post you will learn how OPPO works internally, why it matters for parameter-sensitive workloads, and how to benchmark it yourself with real T-SQL tests. 🧠 TL;DR BOX ✔️ SQL Server 2025 OPPO automatically creates multiple execution plan variants for optional parameter queries ⚡ ✔️ OPPO is part of Intelligent Query Processing and reduces parameter-sensitive plan issues 💣 ✔...

Before we dive into today's topic, if you missed my previous post you can take a look at Check SQL Server Plan Cache Pollution (III) in 45 Seconds, The "45 Seconds DBA Series" | Part 24 . 👉 If you found this deep-dive helpful, feel free to check out the ads—your support helps me keep creating high-quality SQL Server content for the community. SQL SERVER 2025 CU5 (Cumulative Update 5) Is OUT! A Hot Take on the New Features for DBAs ⚡ Critical fixes. Security patches. In-Memory OLTP improvements. Full-Text Search upgrades. This CU is not just maintenance — it directly impacts performance stability and production reliability. In this post, I’ll show you what really matters inside SQL Server 2025 CU5, why some fixes are potentially production-saving, and what every DBA should immediately validate after patching. ⚡ We will also see practical T-SQL examples you ...