JPA: The Good, The Bad, and The Ugly

A walk through what Spring Data JPA actually does at runtime, why it gets uncomfortable during incidents, and what living without an ORM looks like in modern Spring Boot. Examples use Postgres, but the concepts and trade-offs apply to any relational database, the specific syntax for things like guarded upserts and set-based bulk operations will differ on MySQL, SQL Server, or Oracle, but the underlying ideas are the same. TL;DR: Three things make a SQL-first approach worth considering. First, da