How does transaction isolation work?

Can you explain how transaction isolation works in databases?

Sure! Transaction isolation is a property that defines how transaction integrity is visible to other transactions.

What are the different levels of transaction isolation?

There are four main levels: Read Uncommitted, Read Committed, Repeatable Read, and Serializable.

How do these levels affect data consistency?

Each level offers a trade-off between performance and consistency, with Serializable being the strictest.

Can you give an example of when to use each level?

Certainly! Use Read Uncommitted for high performance, and Serializable for critical financial transactions.