Hi abdul,
I'm not asking here for a solution...
I would suggest, to do it in this way.
TYPES: BEGIN OF TY,
FIELD1 TYPE N LENGTH 18,
FIELD2 TYPE C LENGTH 20,
END OF TY.
DATA: WA2 TYPE TY,
ITAB LIKE STANDARD TABLE OF WA,
ITAB2 LIKE STANDARD TABLE OF WA.
FIELD-SYMBOLS: <lfs_wa> TYPE TY.
... <Insert sample code from above>
SORT ITAB BY FIELD1.
ITAB2 = ITAB.
DELETE ADJUCANT DUPLICATES ITAB2 COMPARING FIELD1.
LOOP AT ITAB2 INTO WA2.
LOOP AT ITAB ASSIGNING <lfs_wa> where FIELD1 = WA2-FIELD1.
IF sy-tabix <> 1.
clear: <lfs_wa>-field1.
ENDIF.
WRITE: / <lfs_wa>-FIELD1, <lfs_wa>-FIELD2.
ENDLOOP.
ENDLOOP.
~Florian
PS: No guarantee that this syntax is correct, because it is just written here and not tested