What is locking in SQL?
An example of an AI chatbot conversation about SQL locking mechanisms.
What is locking in SQL?
Locking in SQL is a mechanism to control access to data in a database to ensure data integrity.
Why is locking important in database transactions?
Locking is crucial to prevent issues like dirty reads, lost updates, and to maintain consistency during concurrent transactions.
What are the different types of locks in SQL?
The main types of locks in SQL are shared locks, exclusive locks, and update locks, each serving different purposes.
How does locking affect performance?
Locking can impact performance by causing delays if multiple transactions are waiting for the same resource, leading to contention.
Can you give an example of a locking scenario?
Sure! For instance, if two transactions try to update the same row simultaneously, one will be locked until the other completes.
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