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Hibernate Update Query

                         

In this tutorial we will show how to update a row with new information by retrieving data from the underlying database using the hibernate. Lets first write a java class to update a row to the database.

Create a java class:
Here is the code of our java file (UpdateExample.java), where we will update a field name "InsuranceName" with a value="Jivan Dhara" from a row of the insurance table.

Here is the code of delete query: UpdateExample .java 

package roseindia.tutorial.hibernate;

import java.util.Date;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;

public class UpdateExample {
  /**
   @param args
   */
  public static void main(String[] args) {
    // TODO Auto-generated method stub
    Session sess = null;
    try {
      SessionFactory fact = new Configuration()
.configure().buildSessionFactory();
      sess = fact.openSession();
      Transaction tr = sess.beginTransaction();
      Insurance ins = (Insurance)sess.get
(
Insurance.class, new Long(1));
      ins.setInsuranceName("Jivan Dhara");
      ins.setInvestementAmount(20000);
      ins.setInvestementDate(new Date());
      sess.update(ins);
      tr.commit();
      sess.close();
      System.out.println("Update successfully!");
    }
    catch(Exception e){
      System.out.println(e.getMessage());
    }
  }
}

Download this code.

Output:

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).

log4j:WARN Please initialize the log4j system properly.

Hibernate: select insurance0_.ID as ID0_0_, insurance0_.insurance_name as insurance2_0_0_, insurance0_.invested_amount as invested3_0_0_, insurance0_.investement_date as investem4_0_0_ from insurance insurance0_ where insurance0_.ID=?

Hibernate: update insurance set insurance_name=?, invested_amount=?, investement_date=? where ID=?

Update successfully!

                         

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