SQL Server Diagnostic Information Queries for June 2026

This article presents the SQL Server Diagnostic Information Queries for June 2026, a comprehensive set of T-SQL scripts 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. The queries have been regularly updated since 2009, with improvements in formatting and synchronization across versions. The post provides download links for each version and matching blank results spreadsheets, making it a valuable resource for database administrators and IT professionals seeking to optimize SQL Server environments.