How do you deal with an SQL deadlock?

Philippines (SANEPR.com) April 18, 2008 -- As the name suggests, a
deadlock is not something that is necessarily pleasant, much less favored, unless, of course, you are competing in a sport and are losing. Any other deadlock, be it traffic or in sql server systems, is something that is unwanted, avoided, and fixed as soon as possible. So just how do you get to and deal with an SQL deadlock?

A deadlock is what happens when you have two user processes that have locks on separate objects with each of the processes trying to get a lock on the object that the other already has. This incident inadvertantly uses up the sql server's resources, particularly CPU power. What's more is this actually drags down the performance of the server, as most applications resubmit the aborted transaction after receiving a deadlock message.

Object locking is actually an intrinsic behavior observed by many in sql servers, and generally in relational detabases. This results in a locking of the data and blocking of other requests, the end result of preventing concurrent sql statements from executing conflicting modifications to the database.

Having identified what an sql deadlock is, how do you deal with it then?

As with any problem, the ultimate solution is the identification of source of the trouble, in this case, the code responsible for all the problems, as well as the participating objects. SQLSolutions has developed the ideal tool in detecting and solving sql deadlock problems. SQL Deadlock Detector is designed to monitor SQL servers 27/7, allowing for real-time deadlock detection. SQL Deadlock Detector records all details of both lock and deadlock events, and then conveniently turns them out as information that is easy to understand, complete with full information on participating objects and offending codes and diagrams, basically everything you need to effectively resolve the issue and recude chances of deadlock events.

The SQLSolutions Deadlock Detector helps you resolve the deadlock issues that greatly contribute to your server's loss of resources and reliability. This is an essential tool that will alleviate performance problems attributed to lock problems.