SQL Server Diagnostic Information Queries for May 2026

This article presents the SQL Server Diagnostic Information Queries for May 2026, a comprehensive set of T-SQL scripts (DMV diagnostic queries) for analyzing SQL Server instance configuration and performance. It includes versions for SQL Server 2005 through 2025, Azure SQL Managed Instance, and Azure SQL Database. Updates include cleanup, synchronization across versions, and a new column for CACHESTORE_SQLCP Memory Clerk Usage in the Memory Snapshot query. The post provides download links for scripts and blank results spreadsheets, and mentions ongoing improvements driven by usage at ToolsGroup and YouTube tutorials.