???? SQL Server Deadlocks Explained with Real Example

死結 (Deadlock) 的發生與資料庫的鎖定 (Lock) 有關，這篇文章將介紹資料庫為什麼需要鎖定、MS SQL 的鎖定擴大 (Lock Escalation) 機制，以及減少死結的方法。 鎖定與鎖定擴大 MS SQL 資料庫在存取時，會執行資料 鎖定。 為什麼要鎖定資料 ? 主要是避免以下情形:

This technical guide details the internal mechanisms of deadlocks in SQL Server, how to diagnose the root cause using the right tools, and the most effective resolution strategies to transform these unpredictable crisis events into solvable design problem

In this real scenario, an in-house application returns an error to the users, and users notify the development team about this error. The development team realizes that it is a deadlock issue, but they could not find the main reason for the problem. Unde