What are the differences between read and write locks?

What are the differences between read and write locks?

Read locks allow multiple transactions to read data simultaneously, while write locks restrict access to one transaction at a time.

Can you explain when to use each type of lock?

Use read locks when you need to allow concurrent reads without modifying data. Use write locks when you need to ensure data integrity during updates.

What happens if a read lock is held and a write lock is requested?

If a read lock is held, the write lock request will be blocked until all read locks are released, ensuring data consistency.

Are there any performance implications of using these locks?

Yes, using too many write locks can lead to contention and reduced performance, while read locks can improve performance by allowing concurrent access.