Lookup DSO in Start Routine and End Routine to update date

Question

Hi Gurus,
I need a Start Routine & help, while loading the data from DSO to Info Cube.
In the DSO ( /BIC/AZSD_O0300 ) & in the InfoCube I have a common fields are
0DOC_NUMBER ( DOCUMENT NUMBER), 0S_ORD_ITEM ( Sales Document Item Number ), 0SCHED_LINE ( Schedule Line ) and 0MATAV_DATE ( Material Available Date ).
Data in DSO is as follows
0DOCNUMBER_ 0SORD_ITEM_ 0SCHEDLINE_ 0MATAVDATE_
1001 10 1 05/21/2011
1001 20 2 05/26/2011
1001 10 2 05/22/2011
1001 20 1 05/18/2011
1002 20 1 05/20/2011
1002 10 1 05/24/2011
1002 10 2 05/28/2011
Data should load in the InfoCube as below.
0DOCNUMBER    0S_ORD_ITEM     0SCHED_LINE    0MATAV_DATE
1001          10    1   05/21/2011
1001          20    2   05/18/2011
1001          10    2   05/21/2011
1001          20     1  05/18/2011
1002         20     1  05/20/2011
1002         10    1   05/24/2011
1002         10     2   05/24/2011  
When ever schedule line is 2 for the record we have to check both Document number and 0S_ORD_ITEM are same change the Material moving date to the date schedule line is 1 for the same document and same order item number.
Your help is really appreciated.
Thanks
Ganesh Reddy.

Answer 1

Thanks Parth and Raj. I have written code almost as you suggested just little changes.
Start Routine
TABLES:/BIC/AZSD_O0300.
DATA:ITAB_DSO LIKE /BIC/AZSD_O0300.
TYPES: BEGIN OF ITABTYPE,
DOC_NUM TYPE /BI0/OIDOC_NUMBER,
SAL_DOC_NUM TYPE /BI0/OIS_ORD_ITEM,
SCHED_NUM TYPE /BI0/OISCHED_LINE,
MAT_AV_DATE TYPE /BI0/OIMATAV_DATE,
END OF ITABTYPE.
DATA : ITAB TYPE STANDARD TABLE OF ITABTYPE
       WITH HEADER LINE
       WITH NON-UNIQUE DEFAULT KEY INITIAL SIZE 0.
data: wa_itab type ITABTYPE.
SELECT DOC_NUMBER S_ORD_ITEM SCHED_LINE MATAV_DATE
  FROM /BIC/AZSD_O0300
  INTO TABLE ITAB
  WHERE SCHED_LINE = '1'.
Field Routine.
if SOURCE_FIELDS-S_ORD_ITEM <> '1'.
      read table itab into wa_itab with key    doc_num =
      SOURCE_FIELDS-DOC_NUMBER
                                         SAL_DOC_NUM =
                                         SOURCE_FIELDS-S_ORD_ITEM.
      if sy-subrc = 0.
      RESULT = wa_itab-MAT_AV_DATE.
    endif.
  endif.
I haven't check how the data is coming. But for now I am closing this issue.
Thanks Again
Ganesh Reddy.