Mid SQL

How do you handle deadlocks in SQL transactions?

Deadlocks occur when two or more transactions are waiting for each other to release locks,

causing a cycle of dependencies. To handle deadlocks:

  • Deadlock Detection: DBMS systems (e.g., SQL Server) can automatically detect

deadlocks and terminate one of the transactions to break the deadlock.

  • Retry Logic: If a deadlock is detected, you can implement a retry mechanism in your

application to reattempt the transaction after a short delay.

  • Optimize Transactions: Keep transactions short and ensure that they acquire locks

in the same order to reduce the likelihood of deadlocks.

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