SQL Blocking Troubleshooting steps
Welcome to SupportDesk. In this guide I’m going to walk through a practical SQL Server blocking investigation from start to finish. This is aimed at application support analysts, technical support engineers and BI or reporting specialists who need to diagnose live incidents without guessing. The example uses a simple Orders table, but the method is the same when the issue is a real application screen hanging, a report not returning, or a batch job queue building up. We will reproduce the issue, identify the blocking chain, inspect the lead blocker, check the locks, choose a safe resolution, and finish with a root cause summary.