May 2019
Intermediate to advanced
316 pages
7h 13m
English
Content preview from Hands-On Full Stack Development with Spring Boot 2 and React - Second Edition
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Using JPA to Create and Access a Database
This chapter covers how to use Java Persistent API (JPA) with Spring Boot and how to define a database by using entity classes. In the first phase, we will be using the H2 in-memory database for development and demonstration purposes. H2 is an in-memory SQL database that is really good for fast development or demonstration purposes. In the second phase, we will move from H2 to use MariaDB. This chapter also describes the creation of CRUD repositories and a one-to-many connection between database tables.
In this chapter, we will cover the following topics:
- Basics of Object-Relational Mapping (ORM), JPA, and Hibernate
- Creating the entity classes
- Creating CRUD repositories
- Relationships between tables ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.