Master Microservices with Spring Boot and Spring Cloud - Step 14 – Create a JPA Repository – V2

The video tutorial explains how to create a Spring Data JPA repository interface for managing a currency exchange entity. It covers extending the JPA repository, integrating it with a controller, and implementing a custom find by method to query the database. The tutorial also addresses handling null results with runtime exceptions and demonstrates testing the implementation by querying different currency exchanges.

What is the primary purpose of creating a repository interface in Spring Data?

• To create user interfaces

• To manage a specific entity and its primary key

• To manage database connections

• To handle user authentication

Which interface should the Currency Exchange Repository extend?

• Hibernate Repository

• JPA Repository

• Spring Repository

• SQL Repository

What is the role of autowiring in the Currency Exchange Controller?

• To delete the repository instance

• To create a new repository instance

• To automatically inject the repository instance

• To manually connect the repository

How can you retrieve all records from the Currency Exchange database?

• Using repository.fetchAll()

• Using repository.retrieveAll()

• Using repository.getAll()

• Using repository.findAll()

What method can be added to the repository to find records by specific columns?

• queryByColumns()

• findByColumn()

• searchBy()

• findByFromAndTo()

What should be done if no data is found for a specific query in the controller?

• Return a default value

• Log an error message

• Throw a runtime exception

• Retry the query

What is the expected output when querying the database with 'from USD to INR'?

• 50

• 65

• 75

• 25