If you want to use an Embedded database such as H2 to unit test your code, you will need to implement your method manually in H2 if it doesn’t supply one out of the box. You can use Jooq to do this this public class...
Category: jpa
Dealing with JPA Entities backed by SQL Queries that return no unique columns
Earlier I was working on a Spring Boot application where in I had to join multiple tables and map the returned columns to a JPA entity. But the problem was that none of the returned columns had unique values. Here’s a snippet of how my...