ABAP sql 动态查询+范围查询

tables: spfli.
DATA: ls_spfli TYPE SPFLI.
DATA: LS_LINE(80) OCCURS 0 WITH HEADER LINE.
CONCATENATE 'carrid in (''AA'','  '''AZ'')' INTO LS_LINE.
  APPEND LS_LINE.
  CONCATENATE ' or carrid in (''LH'','  '''AZ'')' INTO LS_LINE.
  APPEND LS_LINE.
  clear ls_line.
write:LS_LINE.
select  * from spfli into ls_spfli
  where (ls_line).
  write: / ls_spfli-carrid.
  ENDSELECT.

法2：
DATA:gs_line(100) TYPE c.
  CONCATENATE gs_line 'a~werks = p_werks' INTO gs_line.
  IF s_lgort IS NOT INITIAL.
    CONCATENATE gs_line 'AND a~lgort = s_lgort' INTO gs_line.
  ENDIF.
  IF s_mblnr IS NOT INITIAL.
    CONCATENATE gs_line 'AND a~mblnr = s_mblnr' INTO gs_line.
  ENDIF.
  IF s_bldat-low IS NOT INITIAL OR s_bldat-high IS NOT INITIAL.
    CONCATENATE gs_line 'AND b~bldat in s_bldat' INTO gs_line.
  ENDIF.
  IF s_umlgo IS NOT INITIAL.
    CONCATENATE gs_line 'AND a~lumlgo =  s_umlgo' INTO gs_line.
  ENDIF.
  IF s_kostl IS NOT INITIAL.
    CONCATENATE gs_line 'AND a~umlgo =  s_kostl' INTO gs_line.
  ENDIF.
  IF s_aufnr IS NOT INITIAL.
    CONCATENATE gs_line 'AND a~umlgo =  s_aufnr' INTO gs_line.
  ENDIF.
  IF s_matnr IS NOT INITIAL.
    CONCATENATE gs_line 'AND a~matnr =  s_matnr' INTO gs_line.
  ENDIF.
  IF s_bwart IS NOT INITIAL.
    CONCATENATE gs_line 'AND a~bwart =  s_bwart' INTO gs_line.
  ENDIF.
  REFRESH gt_itab.
  SELECT a~werks
   a~lgort
    a~mblnr
    b~bldat
    a~umlgo
    a~kostl
    a~aufnr
   a~matnr
    a~bwart
*zkomm TYPE   -       ,"领料部门
*TYPE     -       ,"业务类型
    b~budat
    a~charg
    a~meins
    a~menge
    a~sgtxt
    a~shkzg
  FROM mseg AS a
  INNER JOIN mkpf AS b
  ON a~mblnr = b~mblnr AND a~mjahr = b~mjahr
  INTO CORRESPONDING FIELDS OF TABLE  gt_itab
  WHERE (gs_line) and ( ( a~bwart in ('311','312','301','302') and a~lgort not like '6*' and a~umlgo = '' )
    or ( a~bwart in ('201','202','543','544','551','552','Z03','Z04','Z05','Z06','Z11','Z12','Z15','Z16') and a~lgort not like '6*' ) ).