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...

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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...