Master Hibernate and JPA with Spring Boot in 100 Steps - Step 56 - Criteria Query - Courses Without Students

The video tutorial explains the process of writing and executing a criteria query to find courses without students. It begins by discussing the complexity of criteria queries and how they become easier with practice. The tutorial then demonstrates how to write a criteria query using JPQL to identify courses with no students. The process involves setting up the query structure, defining predicates, and executing the query. The tutorial concludes with a successful test result, showing the course 'Spring in 50 Steps' as the only course without students.

What is the initial challenge when starting with criteria queries?

• Understanding the database structure

• Complexity of the initial syntax

• Lack of documentation

• Limited functionality

What is the purpose of the JPQL query discussed in the video?

• To add new courses

• To update student records

• To delete courses

• To find courses without students

In the criteria query, what is the predicate used to check?

• If the course has a name

• If the course is active

• If the course has students

• If the course is archived

What is the result of executing the criteria query?

• No courses are listed

• Courses without students are listed

• All courses are listed

• Courses with students are listed

Which course was identified as having no students?

• Spring in 50 Steps

• Java Basics

• Advanced Python

• Data Structures