SQ02 - Advanced code for filtering

Question

Hi all,
I'm trying to filter some of the lines (rows) in STPO table in my query.
The difficulty is that, the condition whether that line will be filtered or not, depends on a field from a different line.
The upper records are to be filtered, because the lower rectangle shows that they have been replaced.
Based on another article (Eliminate Duplicate Records in SAP Query Results | SAP Tribal Knowledge) I did some coding to select these data (bottom rectange) into an internal table and filter the rows that have these values (the upper rectange).
This did not work.
How can I achieve this?
Thanks in advance,
Also, I would like to know how far can I go with ABAP coding of queries, and I want a comprehensive - end-to-end book for this purpose.
I believe most ABAP reports can be recreated using Query reporting + Coding , but the lack of documentation and applied examples are limiting the possibilities.

Answer 1

Hi Srinath,
Try this code.
DATA: BEGIN OF it_itab OCCURS 0,
         field TYPE char10,
         END OF it_itab.
  DATA: w_itab LIKE LINE OF it_itab.
  CONSTANTS:
  c_alpha TYPE string
             VALUE 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
  c_num TYPE string VALUE '0123456789'.
  w_itab-field = 'A123456789'.
  APPEND w_itab TO it_itab.
  CLEAR w_itab.
  w_itab-field = 'A123 56789'.
  APPEND w_itab TO it_itab.
  CLEAR w_itab.
  w_itab-field = 'A123.56789'.
  APPEND w_itab TO it_itab.
  CLEAR w_itab.
  w_itab-field = '0112356789'.
  APPEND w_itab TO it_itab.
  CLEAR w_itab.
  LOOP AT it_itab INTO w_itab.
    IF w_itab-field+0(1) CO c_alpha AND
        w_itab-field+1(9) CO c_num.
      WRITE:/ 'field is valid'.
    ELSE.
      WRITE:/ 'field is not valid'.
      DELETE it_itab FROM w_itab.
    ENDIF.
  ENDLOOP.
Regards,
Vijay