URGENT: To change the where condition in select query at runtime ?

Question

Hi,
I have to develop a report, 4 which I have created a selection screen with 7 Input Parameters whose value is to be filled by the user while executing the report.
On the basis of this I do the desired selection of output.
But the problem is that how do I write my select Query(where condition) if the user enetrs only 2 Input parameters or 3 or whatever he feels like.
Pls help me out...

Answer 1

hi,
check this sample code.
Here i am populating where condition at runtime.
DATA: V_WHERE TYPE STRING.
SELECTION-SCREEN BEGIN OF BLOCK INPUT WITH FRAME TITLE TEXT-001.
SELECT-OPTIONS : S_VBELN FOR VBAK-VBELN,
                 S_ERDAT FOR VBAK-ERDAT.
SELECTION-SCREEN END OF BLOCK INPUT.
START-OF-SELECTION.
  PERFORM POPULATE_WHERE.
  PERFORM GET_VBAK_DATA.
*&      Form  POPULATE_WHERE
*       Populate Where
FORM POPULATE_WHERE .
  IF NOT S_ERDAT[] IS INITIAL.
    CONCATENATE 'VBELN IN S_VBELN'
                'AND'
                'ERDAT IN S_ERDAT'
          INTO V_WHERE
          SEPARATED BY SPACE.
  ELSE.
    V_WHERE = 'VBELN IN S_VBELN'.
  ENDIF.
ENDFORM.                    " POPULATE_WHERE
*&      Form  GET_VBAK_DATA
*       GET VBAK DATA
FORM GET_VBAK_DATA .
  SELECT VBELN
         ERDAT
         VBTYP
         NETWR
         WAERK
         VKORG
         VTWEG
         SPART
    INTO CORRESPONDING FIELDS OF TABLE IT_VBAK
    FROM VBAK
    WHERE VBELN IN S_VBELN
    AND   ERDAT IN S_ERDAT.
   WHERE (V_WHERE).
endform.
Regards
Sailaja.