Understanding SQL Deadlocks

What Are SQL Deadlocks?

Deadlocks in a SQL Server occur when two or more sessions are waiting for resources locked by each other, causing the system to reach a state where none of the sessions can proceed.

Why Deadlocks Matter

Deadlocks can disrupt query performance and user experience by causing transaction rollbacks. It’s crucial to identify and resolve frequent deadlocks to maintain efficient database operations.

What to Look for in the Deadlock Chart

• Spikes in Deadlocks: Look for patterns where deadlocks occur more frequently. This could point to issues in transaction design, such as long-running transactions or poorly indexed queries.
• Peak Periods: If deadlocks are occurring during specific times, investigate concurrent transactions and workload during those periods to identify bottlenecks.

Related Pages:

• Performance History

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