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AlanBinu007AlanBinu007
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Spring boot hibernate with H2
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‎spring-boot jpa-with-hibernate-and-h2/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.in28minutes.springboot.rest.example</groupId>
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<artifactId>spring-boot-2-jpa-with-hibernate-and-h2</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<packaging>jar</packaging>
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<name>spring-boot-2-jpa-with-hibernate-and-h2</name>
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<description>Spring Boot 2, Hibernate, JPA and H2 - Example Project</description>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>2.3.1.RELEASE</version>
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<relativePath/> <!-- lookup parent from repository -->
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</parent>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
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<java.version>1.8</java.version>
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<maven-jar-plugin.version>3.1.1</maven-jar-plugin.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-data-jpa</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-devtools</artifactId>
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<scope>runtime</scope>
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</dependency>
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<dependency>
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<groupId>com.h2database</groupId>
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<artifactId>h2</artifactId>
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<scope>runtime</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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<repositories>
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<repository>
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<id>spring-snapshots</id>
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<name>Spring Snapshots</name>
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<url>https://repo.spring.io/snapshot</url>
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<snapshots>
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<enabled>true</enabled>
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</snapshots>
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</repository>
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<repository>
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<id>spring-milestones</id>
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<name>Spring Milestones</name>
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<url>https://repo.spring.io/milestone</url>
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<snapshots>
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<enabled>false</enabled>
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</snapshots>
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</repository>
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</repositories>
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<pluginRepositories>
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<pluginRepository>
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<id>spring-snapshots</id>
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<name>Spring Snapshots</name>
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<url>https://repo.spring.io/snapshot</url>
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<snapshots>
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<enabled>true</enabled>
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</snapshots>
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</pluginRepository>
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<pluginRepository>
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<id>spring-milestones</id>
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<name>Spring Milestones</name>
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<url>https://repo.spring.io/milestone</url>
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<snapshots>
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<enabled>false</enabled>
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</snapshots>
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</pluginRepository>
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</pluginRepositories>
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</project>

‎spring-boot jpa-with-hibernate-and-h2/src/main/java/com/alanbinu/springboot/jpa/hibernate/h2/example/SpringBoot2JPAWithHibernateAndH2Application.java‎

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package com.alanbinu.springboot.jpa.hibernate.h2.example;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.CommandLineRunner;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import com.alanbinu.springboot.jpa.hibernate.h2.example.student.Student;
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import com.alanbinu.springboot.jpa.hibernate.h2.example.student.StudentRepository;
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@SpringBootApplication
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public class SpringBoot2JPAWithHibernateAndH2Application implements CommandLineRunner {
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private Logger logger = LoggerFactory.getLogger(this.getClass());
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@Autowired
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StudentRepository repository;
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public static void main(String[] args) {
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SpringApplication.run(SpringBoot2JPAWithHibernateAndH2Application.class, args);
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}
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@Override
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public void run(String... args) throws Exception {
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logger.info("Student id 10001 -> {}", repository.findById(10001L));
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logger.info("Inserting -> {}", repository.save(new Student("John", "A1234657")));
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logger.info("Update 10003 -> {}", repository.save(new Student(10001L, "Name-Updated", "New-Passport")));
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repository.deleteById(10002L);
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logger.info("All users -> {}", repository.findAll());
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}
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}

‎spring-boot jpa-with-hibernate-and-h2/src/main/java/com/alanbinu/springboot/jpa/hibernate/h2/example/student/Student.java‎

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package com.alanbinu.springboot.jpa.hibernate.h2.example.student;
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import javax.persistence.Entity;
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import javax.persistence.GeneratedValue;
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import javax.persistence.Id;
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@Entity
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public class Student {
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@Id
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@GeneratedValue
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private Long id;
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private String name;
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private String passportNumber;
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public Student() {
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super();
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}
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public Student(Long id, String name, String passportNumber) {
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super();
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this.id = id;
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this.name = name;
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this.passportNumber = passportNumber;
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}
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public Student(String name, String passportNumber) {
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super();
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this.name = name;
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this.passportNumber = passportNumber;
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}
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public Long getId() {
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return id;
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}
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public void setId(Long id) {
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this.id = id;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public String getPassportNumber() {
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return passportNumber;
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}
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public void setPassportNumber(String passportNumber) {
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this.passportNumber = passportNumber;
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}
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@Override
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public String toString() {
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return String.format("Student [id=%s, name=%s, passportNumber=%s]", id, name, passportNumber);
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}
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}

‎spring-boot jpa-with-hibernate-and-h2/src/main/java/com/alanbinu/springboot/jpa/hibernate/h2/example/student/StudentRepository.java‎

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package com.alanbinu.springboot.jpa.hibernate.h2.example.student;
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import org.springframework.data.jpa.repository.JpaRepository;
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import org.springframework.stereotype.Repository;
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@Repository
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public interface StudentRepository extends JpaRepository<Student, Long>{
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}

‎spring-boot jpa-with-hibernate-and-h2/src/main/resources/application.properties‎

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# Enabling H2 Console
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spring.h2.console.enabled=true
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#Turn Statistics on
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spring.jpa.properties.hibernate.generate_statistics=true
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logging.level.org.hibernate.stat=debug
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# Show all queries
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spring.jpa.show-sql=true
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spring.jpa.properties.hibernate.format_sql=true
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logging.level.org.hibernate.type=trace
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spring.datasource.url=jdbc:h2:mem:testdb
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spring.data.jpa.repositories.bootstrap-mode=default

‎spring-boot jpa-with-hibernate-and-h2/src/main/resources/data.sql‎

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insert into student
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values(10001,'Ranga', 'E1234567');
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insert into student
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values(10002,'Ravi', 'A1234568');

‎spring-boot jpa-with-hibernate-and-h2/src/test/java/com/alanbinu/springboot/jpa/hibernate/h2/example/SpringBoot2JPAWithHibernateAndH2ApplicationTests.java‎

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package com.alanbinu.springboot.jpa.hibernate.h2.example;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.springframework.boot.test.context.SpringBootTest;
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import org.springframework.test.context.junit4.SpringRunner;
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@RunWith(SpringRunner.class)
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@SpringBootTest
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public class SpringBoot2JPAWithHibernateAndH2ApplicationTests {
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@Test
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public void contextLoads() {
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}
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}

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