Configure PostgreSQL & Create JPA Entities from Scratch

🚀 Go from a new project to your first JPA Entity! Learn to set up a Spring Boot project, connect it to a database, and map your first Java class to a database table. This is the practical, hands-on guide you need to get started with Spring Data JPA. In this tutorial, we'll walk through every step, from generating a project on start.spring.io to troubleshooting common database connection errors. You'll gain a solid understanding of JPA Entities and Object-Relational Mapping (ORM). 🛠️ *In this step-by-step guide, you will learn how to:* * Create a new Spring Boot project with the necessary dependencies (Spring Data JPA, PostgreSQL Driver). * Configure your application.properties to connect to a PostgreSQL database. * Understand and set key properties like spring.jpa.hibernate.ddl-auto. * Understand the core concept of ORM (Object-Relational Mapping). * Create your first JPA @Entity class. * Use annotations like @Id, @GeneratedValue, @SequenceGenerator, @Table, and @Column to precisely map your Java class to a database table. 💻 *Technologies Covered:* * Java 21 ☕ * Spring Boot 3 🌱 * Spring Data JPA * Hibernate * PostgreSQL 🐘 * Maven 🧑‍💻 *Who is this tutorial for?* * Developers starting a new project with Spring Data JPA. * Anyone who wants a practical, code-first guide to creating JPA entities. * Developers looking to understand database configuration in a Spring Boot application. 💡 *What's Next?* Now that we've created our first entity, the next step is to interact with it! ➡️ In our next video, we'll dive into Spring Data Repositories to perform CRUD operations on our Employee entity. Subscribe 🔔 so you don't miss it! *Previous Episode:* JPA vs Hibernate vs Spring Data JPA — What to Use When [2025] https://youtu.be/VChjpY6R7KI Grab Free Guide *Secure 3 Spring Boot endpoints in 30 minutes (free guide)*: https://learnwithiftekhar.kit.com/secure-your-api-in-30-minutes 🔗 BONUS 💻 Get 3 Months of IntelliJ IDEA Ultimate for FREE: https://www.jetbrains.com/store/redeem/ 👉 *Use Promo Code:* LearnWithIfte ✅ For branding and Business inquiries ► learnwithiftekhar@gmail.com ► Join Discord: https://discord.gg/JZmFvSxw 🎯🎯 *Subscribe to my Newsletter:* https://learnwithiftekhar.substack.com/ 📘 Resources Mentioned: 🧑‍💻 Source Code: 🙊 Here are the tools and resources I use in my videos: 👉 Master programming by recreating your favorite technologies: https://app.codecrafters.io/join?via=learnwithiftekhar ► Tool that I use for screen recording: CleanShot X for Mac * cleanshot.sjv.io/bODOab ⛔ Background sound: https://share.epidemicsound.com/ia954g 💻 *Running Windows on Mac? Get Parallels Desktop with a 20% discount!* 👉 *Use code PARALLELS20 and grab it here:* https://parallels.sjv.io/bOVD3M IDE I use for coding * IntelliJ Idea Ultimate * VsCode * Sublime 🌐 Secure your connection with NordVPN: https://nordvpn.sjv.io/o4zYan 🤚 In case you want to contact me: ❌ My LinkedIn profile: https://www.linkedin.com/in/hossain-md-iftekhar/ ❌ My X / Twitter profile: https://twitter.com/ifte_hsn ❌ Github: Github: https://github.com/learnwithiftekhar *Note:* Some of the links in this description are affiliate links, and I may earn a small commission if you make a purchase through them. Thank you for your support.