Problem in the select query

Question

Hi.
here i have to make the code in exit_saplv56u_004 in include zxv56u11.
there are tables defined in itself.
i have written like this,but not sure about the table updation and the declaration part:
here i am writing this code in exit_sap
  TABLES:VTTP,VTTK,LIKP,KNA1.
  TABLES:ZOTC_SHPMNT_RTE.
  DATA:x_vttp type vttpvb,
       x_vttk type vttkvb,
       X_LIKP TYPE LIKP,
       X_KNA1 TYPE KNA1,
       X_ZOTC_SHPMNT_RTE TYPE ZOTC_SHPMNT_RTE,
       t_temp type vttk,       feels that declaration iswrong
       x_temp type vttk.      this table andwork area will be used to finally update vttk table feilds
  READ TABLE I_XVTTK INTO X_VTTK INDEX 1.
  READ TABLE I_XVTTP INTO X_VTTP INDEX 1.
CLEAR X_LIKP.
  SELECT SINGLE *     FROM LIKP
                      INTO X_LIKP
                      WHERE VBELN = X_VTTP-VBELN.
    IF SY-SUBRC = 0.
      CLEAR X_KNA1.
  SELECT SINGLE * FROM KNA1              i jus need 2-3 feilds so howcan i avoid the performance prob
       INTO X_KNA1
    WHERE KUNNR = X_LIKP-KUNNR.
IF SY-SUBRC = 0.
  CLEAR X_TEMP.
     SELECT SINGLE * FROM ZOTC_SHPMNT_RTE INTO table t_TEMP
     WHERE SHTYP = X_VTTK-SHTYP
     AND   LAND1 = X_KNA1-LAND1
     AND   BLAND = X_KNA1-REGIO
     AND   ZONE1 = X_KNA1-LZONE.
     IF SY-SUBRC = 0.
       IF T_TEMP[] IS INITIAL.
       READ TABLE T_TEMP INTO X_TEMP.     i want to create a temp internal table
       ELSE.
       SELECT SINGLE * FROM ZOTC_SHPMNT_RTE INTO TABLE t_TEMP
     WHERE SHTYP = X_VTTK-SHTYP
     AND   LAND1 = X_KNA1-LAND1
     AND   BLAND = X_KNA1-REGIO.
       IF SY-SUBRC = 0.
          READ TABLE T_TEMP INTO X_TEMP.
          IF SY-SUBRC = 0.
         MODIFY vttk FROM t_TEMP.       here i want to modify the feilds like vttk-route and vttk-tdlnr
         ENDIF.
         ENDIF.
         ENDIF.
endif.
endif.

Answer 1

First declare a types structure with this 3 variables u want...
now declare a work area(X_KNA1) of this types structure.
And
SELECT SINGLE LAND1 REGIO LZONE FROM KNA1
INTO X_KNA1
WHERE KUNNR = X_LIKP-KUNNR.