JDBC adapter table update Behaviour in PI

Question

Hello Experts ,
I have Proxy to JDBC scenario ,please let know is there possible way to insert more than one line diff item for the same record ??
Could you please explain the behavior of JDBC adapter.
For Instance :
Expected Behavior:
Po number1 , item1 . ( first level of execution )
Po number1 ,  item2. (second level of execution )
Actual Behavior :
Po number1 ,  item2. (second level of execution )
In my scenario it is updating only the recent value , could you please suggest me .
Regards
Raja

Answer 1

Hi ,
Hope you are doing as below in mapping.
Open insert statement twice and don't use PO Number as key field value .
Ex:
case1:
Insert into tablename(ponumber,item)  values(123,'xyz') ;
Insert into tablename(ponumber,item)  values(123,'rtz') ;
O/P:two records gets inserted
123  xyz
123 rtz
case2:
Insert into tablename(ponumber,item)  values(123,'xyz') where ponumber =123 ;
Insert into tablename(ponumber,item)  values(123,'rtz') where ponumber =123 ;
O/P:2nd record overwrites the 1st record
123 rtz
Regards
Venkat