These monitors check for deadlock scenarios then select which process to terminate. SQL deadlock monitors are now standardized in the SQL Server database engine. Learn more about minimizing SQL deadlocks here. Other ways to avoid deadlocks include avoiding cursors, reducing lock times, and using bound connections. Furthermore, you must not allow user input during transactions (all input should be collected PRIOR to the transaction). In addition, data design must be normalized, and application access server objects must be in the exact same order for every instance. To avoid SQL deadlocks, it is important to keep your transactions short and quick. In conversion deadlocks, both processes have a shared lock on the resource and each process then wants to convert the shared lock into an exclusive lock within a transaction. Cycle deadlocks occur when processes acquire locks on different resources when they request resources that both of the processes have. The most common SQL deadlocks are cycle deadlocks and conversion deadlocks. Stop executions do not only occur from a lack of (or locked) resources, they also can happen due to other sources like memory and multiple active result sets.
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