Master Hibernate and JPA with Spring Boot in 100 Steps - Step 79 - Using Enums with JPA

The video tutorial discusses the drawbacks of using strings for review ratings and suggests using enums instead. It explains how to create an enum for review ratings, refactor methods to use enums, and update getters and setters. The tutorial also covers storing enums in a database, initially as ordinals, and later recommends using strings for better database design. The video concludes with a demonstration of the changes in the H2 console.

What changes need to be made to the data SQL when updating the review rating to an enum?

What happens to the existing rows in the database if a new enum value is added?

How do you ensure that there are no compilation errors after changing the method signature to use review rating?