IS-U-WA

 SELECT * INTO TABLE lt_ewaobjh
          FROM ewaobjh
          WHERE objnr = lt_behle-objnr
          AND  ( ( ab >= SY-DATUM AND day_flag EQ 'X' )
                  OR ( bis >= SY-DATUM AND ( day_flag NE 'X'  ) )
               ) .
      IF lt_ewaobjh IS NOT INITIAL.

        READ TABLE lt_ewaobjh ASSIGNING <fs_ewaobjh> INDEX 1.
        lt_behle-weekley      = <fs_ewaobjh>-weekly.
        lt_behle-ab           = <fs_ewaobjh>-ab.
        lt_behle-bis          = <fs_ewaobjh>-bis.
        lt_behle-service_type = <fs_ewaobjh>-service_type.
        lt_behle-status_serv  = <fs_ewaobjh>-status_serv.
*   Wochentag umwandeln
        IF <fs_ewaobjh>-eweekday     = 1.
          lt_behle-wochentag  = 'Mo'.
        ELSEIF <fs_ewaobjh>-eweekday = 2.
          lt_behle-wochentag  = 'Di'.
        ELSEIF <fs_ewaobjh>-eweekday = 3.
          lt_behle-wochentag  = 'Mi'.
        ELSEIF <fs_ewaobjh>-eweekday = 4.
          lt_behle-wochentag  = 'Do'.
        ELSEIF <fs_ewaobjh>-eweekday = 5.
          lt_behle-wochentag  = 'Fr'.
        ELSEIF <fs_ewaobjh>-eweekday = 6.
          lt_behle-wochentag  = 'Sa'.
        ELSEIF <fs_ewaobjh>-eweekday = 7.
          lt_behle-wochentag  = 'So'.
        ENDIF.
      ENDIF.