According to PO number and Line item data should come once but its repeatin

Question

I am calculating IR Quantity and IR value......
for a PO  if there are four same  line items i wanted them once but they are displaying for each and every line item
If my po is 2003000151 and line item 0010 if both are same then i wanted ir quantity 500
but its displaying like this
  PO                 item   IR
2003000151   0010 500
2003000151   0010 500
2003000151   0010 500
2003000151   0010 500
I need like this
2003000151   0010 500
2003000151   0010
2003000151   0010
2003000151   0010
If po number and line item are same IR quantity should be displayed only once..
What should be done if it should not repeat in each and every line item if both PO and line item are same

Answer 1

i am having internal table of it_ekko.
in that i am having some data of PO no, Line Item,IR value and IR qty......
i am having data like below.
PO                        Line Item   IR Value    IR QTY 
200310051          0010         1500           4500
200310051          0010        1500           4500
200310052         0010           0                   0
200310052          0010       0               0
now where ever IR value and IR qty is present i wanted that to display only once against that PO and line item
i wanted like below
PO                        Line Item   IR Value    IR QTY 
200310051          0010         1500           4500
200310051          0010            0              0
200310052         0010             0                0
200310052          0010            0               0
Field names for IR value and IR Qty are Menge2 and dmbtr2.
How to do that.........
I cant use
Delete adjacent duplicates of it_ekko by ebeln = wa_ekko-ebeln and
                                                                      ebelp = wa_ekko-ebelp.
because i wanted that po and same line items , how many times it is like that only.....
in it_ekko table i only wanted to delete duplicates of menge2 and dmbtr2.
Pls suggest the code