Many-to-One Relationships in JPA (@ManyToOne) Explained | Day 61

Day 61 of the Java Backend Development + Spring Boot course. Day 60 mapped the "one" side. Today you write the owning side, and finally retire the plain courseId number. In this video, you'll learn: @ManyToOne and @JoinColumn on the Student entity Replacing courseId with a real Course reference, with the same database column Why a unidirectional many-to-one is often all you need Creating a student by loading and attaching a course Mapping the relationship to DTOs, including an extra courseTitle field How your derived queries from Day 56 keep working This is Lesson 61 of Phase 5: JPA + Hibernate + PostgreSQL. 📌 Previous — Day 60: One-to-Many Relationships 📌 Next up — Day 62: Many-to-Many Relationships 📚 Recommended Resources 📖 Spring in Action (5th Edition) — Craig Walls 👉 https://www.amazon.in/Spring-Action-F... As an Amazon Associate, I earn from qualifying purchases. 🛒 Recommended Coding Setup 💻 Laptop for Coding 👉 https://www.amazon.in/ASUS-Vivobook-i... ⌨️ Mechanical Keyboard 👉 https://www.amazon.in/dp/B07989JYRS?t... 🖱️ Wireless Mouse 👉 https://www.amazon.in/Logitech-Silent... 🎧 Headphones / Headset 👉 https://www.amazon.in/boAt-Rockerz-42... As an Amazon Associate I earn from qualifying purchases. #JavaBackend #SpringBoot #JPA #Hibernate #LearnJava