error in creating a class.

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