Spring Boot JPA Entity Mapping & ID Generation Strategies || CodeTav Management

Are you using @GeneratedValue(strategy = GenerationType.IDENTITY) in your Spring Boot projects? You might be slowing down your application without even realizing it! In Part 5 of our JPA Masterclass, we dive deep into the physical database mapping layer. We start by exploring the dangerous spring.jpa.hibernate.ddl-auto property so you never accidentally drop your production data. Then, we write the exact code to map tables, columns, indexes, and unique constraints. We tackle the complex world of Composite Primary Keys (@IdClass vs @EmbeddedId), and finally, we do a massive performance comparison between IDENTITY, SEQUENCE, and TABLE ID generation strategies What you will learn in this video: How ddl-auto works (none, update, validate, create, create-drop) Customizing your schema with @Table and @Column Adding Unique Constraints and Indexes for search performance Creating Composite Primary Keys and why equals() & hashCode() are mandatory Why the SEQUENCE strategy with allocationSize is the ultimate choice for Enterprise Apps Top 8 Java Backend Interview Questions answered! If this tutorial helped you design better database schemas, please hit the LIKE button and SUBSCRIBE for more advanced Spring Boot masterclasses! #SpringBoot #Java #Hibernate #JPA #DatabaseDesign #BackendDevelopment #CodingTutorial #JavaInterview