Deadlocks occur when two or more processes or threads wait for each other to release a resource, resulting in a situation where neither can make progress. In the context of SQL Server, a deadlock can occur when two or more transactions attempt to access the same resources in a conflicting manner, such as when one transaction attempts to update a row while another holds a lock on that row.
Detecting and resolving deadlocks is important to maintain the smooth operation of a SQL Server database. Deadlocks can cause performance degradation, application failures, and data corruption. To check for deadlocks in SQL Server, you can use the following methods:
