Generic datasource based on custom table and hierarchy table

Question

Hi Gurus,
I have a doubt regarding generic datasource.
my requirement: to create a datasource with 10 fields. (7 fields from custom table and 3 fields whose values can be derived from a hierarchy table).
I have a custom table. In this table one field refers to a hierarchy table. Using this hierarchy table, we can derive values to 3 new fields.
My question is, If i create a generic datasource based on the custom table, how can i include the extra 3 fields which gets values from the hierarchy table.
Where can i write the logic to extract the values for those 3 fields from the hierarchy table.
Thanks
Regards,
Aarthi
[email protected]

Answer 1

Hi Aarthi,
Sample code in the user exit woul be like this:
DATA:  i_biw_tab LIKE BIW_MARA_S.
WHEN '<data source>'.
    LOOP AT i_t_data INTO i_biw_tab.
      SELECT fields
        INTO <table from which you want the value
        FROM <table>
       WHERE <your condition>.
      IF sy-subrc = 0.
             MODIFY i_t_data FROM i_biw_tab.
      ENDIF.
    ENDLOOP.
Bye
Dinesh