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!