Master Hibernate and JPA with Spring Boot in 100 Steps - Step 71 - Introduction to Caching and the Various Levels of Cac

The video tutorial provides an overview of caching in web applications, focusing on Hibernate and JPA. It explains the necessity of caching to reduce database roundtrips, especially for data that doesn't change frequently. The tutorial covers two levels of caching in Hibernate: first level cache, which is specific to a single transaction, and second level cache, which is used across multiple transactions for common data. The video concludes with a summary of caching concepts and a preview of implementing a first level cache example.

What is the primary purpose of caching in web applications?

Explain the difference between the first level cache and the second level cache in Hibernate.

Why is it beneficial to cache user data in a web application?

Describe how Hibernate handles data retrieval with respect to the first level cache.

What happens when a request for data is made that is not present in the second level cache?

In what scenarios would you prefer to use the second level cache over the first level cache?

How does caching improve the performance of a web application?