<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >

<hibernate-mapping>
<class name="entity.Employee" table="EMP">
	<id name="employeeId" column="EId">
		<generator class="assigned"></generator>
	</id>
	<property name="employeeName" column="Name"></property>
	<property name="employeeAddress" column="Address"></property>
	<property name="salary"></property>

</class>
</hibernate-mapping>
***********************************************************************
package entity;

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

public class Test {

	public static void main(String[] args) {
Configuration configuration = new Configuration().configure();
SessionFactory factory=configuration.buildSessionFactory();
Session session = factory.openSession();
Transaction transaction = session.beginTransaction();

Employee employee = new Employee(122,"Om","Ernakulam",37000);
session.save(employee);
//Employee employee = new Employee();
//employee.setEmployeeId(122);
//session.delete(employee);
transaction.commit();
System.out.println("DATA DEL");

	}

}
********************************************************************
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
		"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
		"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
 <session-factory>
     <property name="connection.driver_class">oracle.jdbc.OracleDriver</property>
    <property name="connection.url">jdbc:oracle:thin:@127.0.0.1:1521:xe</property>
    <property name="connection.username">system</property>
    <property name="connection.password">admin</property>
 	<property name="dialect">org.hibernate.dialect.OracleDialect</property>

    <property name="show_sql">false</property>
         <property name="hibernate.hbm2ddl.auto">update</property><!-- create/update -->
      <!-- Mapping files -->

      <mapping resource="employee.hbm.xml"/>
</session-factory>
</hibernate-configuration>