What causes deadlocks in databases?

What causes deadlocks in databases?

Deadlocks in databases occur when two or more transactions are waiting for each other to release locks, creating a cycle.

Can you give me an example of a deadlock situation?

Sure! Imagine Transaction A holds a lock on Resource 1 and needs Resource 2, while Transaction B holds a lock on Resource 2 and needs Resource 1.

How can deadlocks be prevented?

Deadlocks can be prevented by using techniques like lock timeouts, resource ordering, or deadlock detection algorithms.

What happens when a deadlock is detected?

When a deadlock is detected, the database management system typically chooses one transaction to roll back, allowing the others to proceed.