<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"><hibernate-mapping>
  <class dynamic-insert="false" dynamic-update="true" name="org.example.Nachricht"  table="NACHRICHT">
    <id column="LID" name="id" type="java.lang.Long" unsaved-value="-1">
      <generator class="increment">
      </generator>
    </id>
    <property column="titel" insert="true" name="titel" not-null="true" type="java.lang.String" update="true"/>
    <many-to-one class="org.example.Portalnutzer" column="LSENDERID"        name="sender" not-found="ignore" not-null="false"/>
  </class>
</hibernate-mapping>

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"><hibernate-mapping>
  <class dynamic-insert="false" dynamic-update="true" name="org.example.Portalnutzer"      optimistic-lock="version" table="PORTALNUZTER">
    <id column="LID" name="id" type="java.lang.Long" unsaved-value="-1">
      <generator class="increment">

      </generator>
    </id>
    <property column="name" insert="true" name="titel" not-null="true" type="java.lang.String" update="true"/>
    <set cascade="save-update" inverse="true" name="gesendeteNachrichten">
      <key column="LSENDERID"/>
      <one-to-many class="org.example.Nachricht"/>
    </set>
  </class>
</hibernate-mapping>

update NACHRICHT set titel='abc' where LSENDERID=?

update NACHRICHT cross join  set titel='abc' where LID=?