Hibernate :- Could not execute JDBC batch update

Question

i am new in Hibernate, i am getting exception when trying to save Friend_Job object on database.

I am getting Friend and Job object from database and creating new Frien_Job object.

Test.java

    SessionFactory sessionFectory = new Configuration().configure().buildSessionFactory();
    Session session = sessionFectory.openSession();
    Transaction transaction = session.beginTransaction();
    Friend friend= (Friend) session.load(Friend.class, new Integer(1));
    Job job = (Job) session.load(Job.class, new Integer(3));
    Friend_Job friend_Job  = new Friend_Job();
    friend_Job.setFriend(friend);
    friend_Job.setJob(job);
    friend_Job.setCompanyName(job.getCompanyName());
    session.save(friend_Job);
    transaction.commit(); //Exception here

Friend_Job.hbm.xml

 <hibernate-mapping>
<class name="hibernateTest.Friend_Job" table="FRIEND_JOB">
    <id name="primaryKey" column="PRIMARY_KEY">
         <generator class="increment"/>
    </id>
    <property name="companyName" type="string" column="COMPANY_NAME"/>
    <property name="salary" column="SALARY"/>
    <many-to-one name="friend" class="hibernateTest.Friend" cascade="none" column="FK_FRIEND_ID"/>
    <many-to-one name="job" class="hibernateTest.Job" cascade="none" column="FK_JOB_ID"/>
</class>   
</hibernate-mapping>

Exception :-

org.hibernate.exception.SQLGrammarException: Could not execute JDBC batch update
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:90)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:275)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:266)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:167)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1027)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:365)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:137)
at hibernateTest.Test.main(Test.java:20)

Caused by: java.sql.BatchUpdateException: ORA-00932: inconsistent datatypes: expected BINARY got NUMBER

Friend_Job.java

public class Friend_Job {

private int primaryKey;
private String companyName;
private int salary = 0;
private Friend friend;
private Job job;

and else are setter and getter.

Please let me know if more info required.... Thanks in advance.

Answer 1

Go to hibernate.cfg.xml

Check
<property name="hbm2ddl.auto">create</property>
If there is create then change to "update"
<property name="hbm2ddl.auto">update</property>