Using offsets in a select

Question

Do you know if i can use offests in a select?  It doens't want to pull back the infromations.  Here is my select. 
SELECT BELNR KOKRS BUZEI GJAHR EBELN EBELP
         INTO TABLE T_COEP
         FROM COEP
          FOR ALL ENTRIES IN T_ICORDCSTA1
        WHERE BELNR = T_ICORDCSTA1-BELNR
          AND KOKRS = T_ICORDCSTA1-KOKRS
          AND BUZEI = T_ICORDCSTA1-BUZEI
          AND GJAHR = T_ICORDCSTA1-FISCPER+0(4).

Answer 1

I got most to work but now there is someting wrong with the following statement where i do a read into w_coep
         IF NOT T_COEP IS INITIAL.
           READ TABLE T_COEP INTO W_COEP
                             WITH KEY BELNR = W_ICORDCSTA1-BELNR
                                      KOKRS = W_ICORDCSTA1-KOKRS
                                      BUZEI = W_ICORDCSTA1-BUZEI
                                      GJAHR = W_ICORDCSTA1-FISCPER+0(4)
                             BINARY SEARCH.
  FILL FIELDS WITH DATA FROM COEP (CO OBJECT LINE ITEMS TABLE)
   IF SY-SUBRC = 0.
             W_ICORDCSTA1-ZZ_PURCHORD1 = W_COEP-EBELN.
             W_ICORDCSTA1-ZZ_PURORDLI1 = W_COEP-EBELP.
             MODIFY T_ICORDCSTA1 FROM W_ICORDCSTA1 INDEX L_TABIX.
             CLEAR W_ICORDCSTA1.
           ENDIF.
         ENDIF.
         CLEAR W_COEP.
         CLEAR W_ICORDCSTA1.
       ENDLOOP.
     ENDIF.
     REFRESH C_T_DATA.
     C_T_DATA[] = T_ICORDCSTA1[].
     REFRESH T_COEP.
     FREE T_COEP.
     FREE T_ICORDCSTA1.