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49+ curated questions with the same answer shape every time: quick recap, deep dive, pitfalls, and follow-ups. Coverage includes jpa basics, hibernate basics, entity annotations, entity relationships, and more.
Suggested path
Topics follow a teaching order. Each answer ends with a clear Next question control so you can move forward without hunting the list.
Spring Data JPA (fresher level) introduces ORM in Spring. This module is an elevation arc: it opens with JPA basics (the standard) and Hibernate basics (the implementation). Entity annotations and relationships follow at the modeling tier, then the repository layer — CRUD repository, JpaRepository, and derived query methods. Lazy vs eager loading closes the module at the performance tier.
Full catalog
Topics are ordered for learning. Within each topic, rows are numbered 1–49 globally so you always know where you are. Collapse topics if you want a lighter view — use Expand all when you need the full list again.
Numbers 1–49 follow the order we recommend — click any row to open the full answer, or use the sticky Next link at the bottom of each page to go Q1 → Q49.