Java Programming for Complete Beginners - Java 16 - Step 04 - Mapping Course Entity and Populating Data with data sql

The video tutorial explains how to use JPA to map Java entities to database tables without writing queries. It covers the use of annotations like @Entity and @Id, and demonstrates how Spring Boot's autoconfiguration creates tables in an in-memory database. The tutorial also shows how to customize table and column names and insert default data using a data.sql file. Finally, it sets the stage for building an API around the data.

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