Spring boot jpa: Update query

We can execute queries using @Query annotation. If you are performing UPDATE/DELETE queries, you should annotate that query method with @Transactional and @Modifying annotations.

public interface EmployeeRepository extends JpaRepository<Employee, Integer> {

 @Transactional
 @Modifying
 @Query("UPDATE Employee SET firstName=UPPER(firstName) WHERE id in :ids")
 public int toUpperEmployeeFirstNames(@Param(value = "ids") List<Integer> ids);

}

‘toUpperEmployeeFirstNames’ method convert employee first names to upper case for given employee ids.

Find the below working application.

Employee.java

package com.sample.app.entity;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name = "employees")
public class Employee {

 @Id
 @GeneratedValue
 @Column(name = "EMPLOYEE_ID")
 private int id;

 @Column(name = "EMPLOYEE_FIRST_NAME")
 private String firstName;

 @Column(name = "EMPLOYEE_LAST_NAME")
 private String lastName;

 public Employee() {

 }

 public Employee(String firstName, String lastName) {
  this.firstName = firstName;
  this.lastName = lastName;
 }

 public int getId() {
  return id;
 }

 public void setId(int id) {
  this.id = id;
 }

 public String getFirstName() {
  return firstName;
 }

 public void setFirstName(String firstName) {
  this.firstName = firstName;
 }

 public String getLastName() {
  return lastName;
 }

 public void setLastName(String lastName) {
  this.lastName = lastName;
 }

 @Override
 public String toString() {
  return "Employee [id=" + id + ", firstName=" + firstName + ", lastName=" + lastName + "]";
 }

}

EmployeeRepository.java

package com.sample.app.repository;

import java.util.List;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Modifying;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;
import org.springframework.transaction.annotation.Transactional;

import com.sample.app.entity.Employee;

public interface EmployeeRepository extends JpaRepository<Employee, Integer> {

 @Transactional
 @Modifying
 @Query("UPDATE Employee SET firstName=UPPER(firstName) WHERE id in :ids")
 public int toUpperEmployeeFirstNames(@Param(value = "ids") List<Integer> ids);

}

App.java

package com.sample.app;

import java.util.Arrays;

import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;

import com.sample.app.entity.Employee;
import com.sample.app.repository.EmployeeRepository;

@SpringBootApplication
public class App {

 public static void main(String args[]) {
  SpringApplication.run(App.class, args);
 }

 @Bean
 public CommandLineRunner demo(EmployeeRepository empRepo) {
  return (args) -> {

   Employee emp1 = new Employee("Naresh", "Deva");
   Employee emp2 = new Employee("Nani", "Kulkarni");
   Employee emp3 = new Employee("Ram", "Kishore");

   empRepo.saveAll(Arrays.asList(emp1, emp2, emp3));

   empRepo.findAll().forEach(System.out::println);
   
   int updatedRecords = empRepo.toUpperEmployeeFirstNames(Arrays.asList(1, 2));
   System.out.println("\nTotal records updated : " + updatedRecords + "\n");

   empRepo.findAll().forEach(System.out::println);
  };
 }

}

application.properties

logging.level.root=WARN
logging.level.org.hibernate=ERROR

## H2 specific properties
spring.h2.console.enabled=true
spring.h2.console.path=/h2

spring.datasource.url=jdbc:h2:file:~/db/myOrg.db;DB_CLOSE_ON_EXIT=FALSE;DB_CLOSE_DELAY=-1;

spring.datasource.username=krishna
spring.datasource.password=password123

spring.datasource.driverClassName=org.h2.Driver

## JPA specific properties
# Creates the schema, destroying previous data.
spring.jpa.hibernate.ddl-auto=create

spring.jpa.database-platform=org.hibernate.dialect.H2Dialect

spring.jpa.show-sql=false
spring.jpa.properties.hibernate.format_sql=false

## Database connection pooling properties
# Number of ms to wait before throwing an exception if no connection is available.
spring.datasource.max-wait=10000

# Maximum number of active connections that can be allocated from this pool at the same time.
spring.datasource.tomcat.max-active=10
spring.datasource.tomcat.max-idle=5
spring.datasource.tomcat.min-idle=3

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 <modelVersion>4.0.0</modelVersion>
 <groupId>springH2</groupId>
 <artifactId>springH2</artifactId>
 <version>1</version>

 <parent>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-parent</artifactId>
  <version>2.1.6.RELEASE</version>
 </parent>

 <properties>
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 </properties>

 <dependencies>

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

  <dependency>
   <groupId>com.h2database</groupId>
   <artifactId>h2</artifactId>
  </dependency>
  
 </dependencies>

</project>

Total project structure looks like below.

Run App.java, you can see below messages in console.

Employee [id=1, firstName=Naresh, lastName=Deva]
Employee [id=2, firstName=Nani, lastName=Kulkarni]
Employee [id=3, firstName=Ram, lastName=Kishore]

Total records updated : 2

Employee [id=1, firstName=NARESH, lastName=Deva]
Employee [id=2, firstName=NANI, lastName=Kulkarni]
Employee [id=3, firstName=Ram, lastName=Kishore]

You can download complete working application from this link.

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