If you go to the pom.xml file, you can see the dependencies for the JDBC there. We are using MySQL for the database:

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<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>

<dependency>
    <groupId>com.h2database</groupId>
    <artifactId>h2</artifactId>
    <scope>runtime</scope>
</dependency>

<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <scope>runtime</scope>
</dependency>
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According to this code, here are the dependencies:

• Web
• JPA
• MySQL
• H2

Here, we have seen a new dependency named h2. This is one of the well known, in-memory databases. Spring Boot and H2 have a great combination between one another.