The video tutorial explains how to create a save method that can handle both insert and update operations for course data. It uses an entity manager to persist new courses and merge existing ones. The tutorial demonstrates using a command line runner to save a new course and explains how Hibernate generates a sequence for course IDs. Finally, it shows how to verify the inserted data using the H2 console.

What is the primary purpose of the save method discussed in the video?

• To only insert new data

• To delete data from the database

• To only update existing data

• To handle both insert and update operations

Which method is used by the entity manager to insert a new record?

• save

• persist

• update

• merge

What does the entity manager's merge method do?

• Deletes a record

• Inserts a new record

• Updates an existing record

• Fetches a record

What is the name of the course created in the practical example?

• Microservices in 100 steps

• Spring Boot in 100 steps

• Hibernate in 100 steps

• Java in 100 steps

How does Hibernate generate IDs for new records?

• By using a random number generator

• By using a timestamp

• By manually entering IDs

• By using a sequence