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Articles tagged with #hibernate
A deep dive into migrating legacy Java systems to Spring with a strong focus on transaction management. This article explains common pitfalls in legacy JDBC transaction handling, demonstrates practical Spring @Transactional implementations with d...
This article is part of a hands-on series of backend developer interview questions, focusing on real production problems rather than textbook theory. It dives deep into JPA performance pitfalls such as N+1 queries, EntityGraph vs fetch join, casc...
When you decide to move a large, production-grade Spring Boot project from Hibernate 5 to Hibernate 6, you’re not just upgrading a dependency—you’re rewriting how your ORM “thinks.” Hibernate 6 isn’t a minor bump; it’s a fundamentally re-engineer...
You don’t start by writing a “custom dialect” because it sounds cool. You start because your SQL is smarter than Hibernate’s defaults: you need jsonb to be the canonical JSON column, you want correct DDL for uuid, maybe inet, and you’d like nativ...
Hibernate must choose a Dialect (PostgreSQL vs MySQL vs SQL Server vs Oracle, etc.) to tailor generated SQL. It can learn that Dialect in two ways: either you declare it explicitly, or it infers it by querying JDBC metadata from a live connection...
In the world of relational databases, it’s not uncommon to encounter tables where the primary key isn’t just a single column — it’s a combination of two or more columns. These are called composite keys. They usually appear in many-to-many join ta...
