SQL Server Diagnostic Information Queries for April 2026

This article presents the SQL Server Diagnostic Information Queries for April 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 author describes recent cleanup and synchronization improvements, removal of rarely used queries, and encourages downloading the latest scripts from their resources page. The post provides direct links to all query versions and matching blank results spreadsheets, targeting database administrators and IT professionals.