Error in creating a class.

Question

Hi Experts,
While creating a class for the created interface..
I am getting following error.
"IT_MARA" is not an internal table - the "OCCURS n" specification is missing.
Please correct the error.
method Y_IF_INTERFACE~SELECT_METHOD .
SELECT * FROM MARA INTO TABLE IT_MARA
         WHERE MATNR BETWEEN P_MATNR_LOW AND P_MATNR_HIGH.
endmethod.
Regards
nani

Answer 1

The code is like this
tables: mara.
*provide mara table
DATA: zMARA TYPE MARA.
*provide data objects
DATA: OBJ TYPE REF TO Y_CL_INTERFACE,
      IT_MARA TYPE standard table of MARA with header line,
      WA_MARA TYPE MARA.
*provide selection screen
SELECT-OPTIONS: S_MATNR FOR MARA-MATNR.
*provide object
START-OF-SELECTION.
  CREATE OBJECT OBJ.
*call the method.
  CALL METHOD OBJ->Y_IF_INTERFACE~SELECT_METHOD
    EXPORTING
      P_MATNR_LOW  = S_MATNR-LOW
      P_MATNR_HIGH = S_MATNR-HIGH
    IMPORTING
      IT_MARA      = IT_MARA
      WA_MARA      = WA_MARA.
*display the data
  LOOP AT IT_MARA INTO WA_MARA.
    WRITE:/ WA_MARA-MATNR,
            WA_MARA-ERSDA,
            WA_MARA-ERNAM,
            WA_MARA-MATKL,
            WA_MARA-MEINS.
  ENDLOOP.
Regards
Nani