Building a Production-Ready Persistence Layer in Spring Boot
Spring Data JPA makes persistence remarkably easy to start with. Create an entity. Extend JpaRepository . Start writing business logic. public inter…
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Silent Saves: How JPA Persists Your Changes Without You Asking
One of our junior devs wrote an API that was supposed to be “read-only” and act as an internal data funnel — pull some records, transform them, pass…
JPA/Hibernate Entity Lifecycle: 4 States Explained Simply! 💡
Hi everyone! 👋 I am a Java developer documenting my journey toward mastering full-stack software development. In this post, I am breaking down a cor…
Why Your JPA Counter Column Keeps Resetting to Zero
This article was originally published on Jo4 Blog . I'll cut to the chase: if you have a counter column, a @Modifying @Query that increments it, and…
Understanding Hibernate ddl-auto in Spring Boot: When to Use create, update, validate, and none
Choosing the wrong spring.jpa.hibernate.ddl-auto setting can lead to unexpected schema changes or even data loss. In this guide, you'll learn what e…
What Is the N+1 Problem in Hibernate/JPA? How to resolve it? Interview Q&A
The N+1 problem happens when: Hibernate executes 1 query to fetch parent records + N additional queries to fetch child records This causes: too many…