hi i cant able to understand ur schema i have pasted the sample coding can u say how to insert in this, i created two tables Table 1 and table 2. this code is generated by exadel @Entity | public class Table1 implements Serializable { | @Id | private BigDecimal no; | | @OneToMany(mappedBy="no") | private Set<Table2> table2Collection; | | private static final long serialVersionUID = 1L; | | public Table1() { | super(); | } | | public BigDecimal getNo() { | return this.no; | } | | public void setNo(BigDecimal no) { | this.no = no; | } | | public Set<Table2> getTable2Collection() { | return this.table2Collection; | } | | public void setTable2Collection(Set<Table2> table2Collection) { | this.table2Collection = table2Collection; | } | | } Table 2 @Entity | public class Table2 implements Serializable { | @Id | private BigDecimal eno; | | @ManyToOne | @JoinColumn(name="NO") | private Table1 no; | | private static final long serialVersionUID = 1L; | | public Table2() { | super(); | } | | public BigDecimal getEno() { | return this.eno; | } | | public void setEno(BigDecimal eno) { | this.eno = eno; | } | | public Table1 getNo() { | return this.no; | } | | public void setNo(Table1 no) { | this.no = no; | } | | } thank you ragrds kaviarasu View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4069938#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...