Polish

Upgrade sample to use H2 and expose the web console by default.

spring-boot-samples/spring-boot-sample-data-jpa/pom.xml

@@ -27,11 +27,13 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-web</artifactId>
 		</dependency>
+
 		<dependency>
-			<groupId>org.hsqldb</groupId>
-			<artifactId>hsqldb</artifactId>
+			<groupId>com.h2database</groupId>
+			<artifactId>h2</artifactId>
 			<scope>runtime</scope>
 		</dependency>
+
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-test</artifactId>

spring-boot-samples/spring-boot-sample-data-jpa/src/main/resources/application.properties

@@ -1 +1,3 @@
-debug=
+spring.h2.console.enabled=true
+
+logging.level.org.hibernate.SQL=debug