What are SQL locks and deadlocks?
An example of an AI chatbot conversation about SQL locks and deadlocks in database management.
What are SQL locks and deadlocks?
SQL locks are mechanisms that prevent multiple transactions from accessing the same data simultaneously, ensuring data integrity. Deadlocks occur when two or more transactions are waiting for each other to release locks, causing a standstill.
How can I prevent deadlocks in my SQL database?
To prevent deadlocks, you can ensure that transactions acquire locks in a consistent order, keep transactions short, and use lower isolation levels when possible.
What happens when a deadlock occurs?
When a deadlock occurs, the database management system detects it and typically chooses one of the transactions to terminate, allowing the other to proceed.
Can you give an example of a deadlock scenario?
Sure! Imagine Transaction A locks Table 1 and needs Table 2, while Transaction B locks Table 2 and needs Table 1. This creates a deadlock.
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