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In SQL Server 2005, 2008, and 2008R2, I prefer to use a Profiler trace in SQL Server 20 I rely on Extended Events. It is – you just have to know where to look to for a deadlock graph. Wouldn’t it be great if this was represented graphically? Capture a deadlock graph with Profiler or Extended Events No one wants to read through that, manually parsing it to figure out what database it occurred in, what tasks were involved, and which was the victim. Here’s a small sample of what would appear in the log: 1204 lists the information by node 1222 lists it by process and resource. Two trace flags can be enabled to capture more information in the log: 12. You have several options: you can enable a trace flag to write more information to the log, you can capture deadlocks graphs using Profiler or Extended Events, and you can track the number of deadlocks occurring using Performance Monitor. How can I capture more information about it?
![finale 2014.5 in deadlock chain finale 2014.5 in deadlock chain](https://i.ytimg.com/vi/nheJfDBk4HE/maxresdefault.jpg)
And, you’ll see a message in the SQL Server Log that says “Transaction (Process ID 103) was deadlocked on resources with another process and has been chosen as the deadlock victim.” Users might complain about slowness or error messages. You might notice slowness in your application. It picks one task – usually, whichever will be the least expensive to roll back – as the victim, and that task is killed. SQL Server could let this showdown continue indefinitely, but it won’t. Both tasks wait for the other to give up. Then, each task requests to lock the data the other task is already holding. When a deadlock occurs in SQL Server, two or more tasks are running and holding locks on data. This would be a superhero (and super) deadlock. The problem is that Wonder Woman already has a lock on her opponent, and Batman has his.
![finale 2014.5 in deadlock chain finale 2014.5 in deadlock chain](https://www.deadlockotf.com/uploads/1/1/8/1/118186413/33980231-10156791357836490-2961153983772622848-n_orig.jpg)
Freeze Batman tries to help Wonder Woman by unleashing a rope from the grappling gun at Cheetah. Wonder Woman decides to help Batman by also attempting to throw her lasso around Mr. What’s a deadlock? Well, let’s say there’s a fight going on between Wonder Woman and Cheetah, and, in the same room, a fight between Batman and Mr.