Tag: postgresql

All the articles with the tag "postgresql".

• Spring Boot #3 — Connecting PostgreSQL with JPA · CRUD with Entities and Repositories

  15 Jul, 2026

  I replaced the in-memory List CRUD with an actual PostgreSQL setup. From build.gradle dependencies to application.properties, from record to @Entity, why JpaRepository is an empty interface but CRUD still works, and the dividend of layer separation where I didn't change a single line in the controller.

• PostgreSQL Basics — CRUD and the Korean Sorting (COLLATE) Trap

  14 Jul, 2026

  I'd only used SQLite before, so this was my first time touching PostgreSQL. From CREATE to mapping CRUD, and the collation problem where ORDER BY wouldn't sort Korean text alphabetically.