Answering questions on the Hibernate forum is a neverending source of inspiration. The following question is about joining unrelated entities using entity queries, and this post is going to explain how you can do it when using JPA and Hibernate.
Continue reading “How to JOIN unrelated entities with JPA and Hibernate”
While answering questions on the Hibernate forum, I stumbled on the following question, and, since it’s very interesting, I decided to turn the answer into a dedicated blog post.
Continue reading “How do solve the PostgreSQL :: cast operator issue with JPA and Hibernate”
Recently, I got a very good question on Twitter, and I decided that the best way to answer it is with a new article.
In this article, we are going to see how various ways to map an Enum using JPA and Hibernate.
Continue reading “The best way to map an Enum Type with JPA and Hibernate”
If you’ve been using Hibernate long enough, then you surely must have seen this WARN log message when doing pagination while join fetching multiple entities.
HHH000104: firstResult/maxResults specified with collection fetch; applying in memory!
In this article, I’m going to show a very elegant solution to fix this issue.
Continue reading “The best way to fix the Hibernate “HHH000104: firstResult/maxResults specified with collection fetch; applying in memory!” warning message”
I found this question on the Hibernate forum, and it’s a very good opportunity to show why mastering Windows Functions is a very important skill for any backend software developer.
Continue reading “Why you should definitely learn SQL Window Functions”