sap abap 多个表inner join on

  REFRESH lt_alv.
  lt_alv = gt_alv.
  SORT lt_alv BY equnr.
  DELETE lt_alv WHERE equnr IS INITIAL.
  IF lt_alv IS NOT INITIAL.
    SELECT
      a~equnr,
      eqkt~eqktx,
      iflotx~tplnr,
      iflotx~pltxt
      FROM equz AS a
      INNER JOIN eqkt
      ON a~equnr = eqkt~equnr
      AND eqkt~spras = @sy-langu
      LEFT JOIN ( iloa INNER JOIN iflotx
                   ON iloa~tplnr = iflotx~tplnr
                   AND iflotx~spras = @sy-langu )
      ON a~iloan = iloa~iloan
      FOR ALL ENTRIES IN @lt_alv
      WHERE a~equnr = @lt_alv-equnr
        AND a~datbi = '99991231'
     INTO TABLE @DATA(lt_equnr).
    SORT lt_equnr BY equnr.
  ENDIF.


  "设备名称等信息
  CLEAR:gw_alv-eqtyp,gw_alv-eqktx,
        gw_alv-tplnr,gw_alv-pltxt.
  SELECT SINGLE
         equi~eqtyp,
         eqkt~eqktx,
         iflotx~tplnr,
         iflotx~pltxt
         FROM equz AS a
         INNER JOIN equi
         ON a~equnr = equi~equnr
         INNER JOIN eqkt
         ON a~equnr = eqkt~equnr
         AND eqkt~spras = @sy-langu
         LEFT JOIN ( iloa INNER JOIN iflotx
                     ON iloa~tplnr = iflotx~tplnr
                     AND iflotx~spras = @sy-langu )
         ON a~iloan = iloa~iloan
         WHERE a~equnr = @gv_equnr
           AND a~datbi = '99991231'
         INTO ( @gw_alv-eqtyp,@gw_alv-eqktx,
                @gw_alv-tplnr,@gw_alv-pltxt ).



"exist
  SELECT
   aufnr
   auart
   objnr
   INTO TABLE gt_aufk
   FROM aufk
   WHERE NOT EXISTS
    ( SELECT *
          FROM zztpm010
          WHERE ifflg = 'S'
            AND aufnr = aufk~aufnr )
  AND  aufk~auart = 'PM02'
  AND  aufk~aufnr IN s_aufnr.

转载原文地址 http://blog.sina.com.cn/s/blog_90e6e4a90102v13i.html

select a~matnr a~maktx b~extwg b~meins d~puunit d~punam c~stlnr

into table it_zmatnr
from ( ( mast as c
inner join mara as b on b~matnr = c~matnr )
inner join makt as a on a~matnr = c~matnr )
inner join zmc_dp as d on d~matkl = b~matkl
for all entries in it_zmatnr_idnrk
where c~stlnr = it_zmatnr_idnrk-stlnr
and d~indu = 'W030'. " 按售卖商品输入
注意括号：
inner join(等值连接) 只返回两个表中联结字段相等的行
left join(左联接) 返回包括左表中的所有记录和右表中联结字段相等的记录
right join(右联接) 返回包括右表中的所有记录和左表中联结字段相等的记录
INNER JOIN 语法：
INNER JOIN 连接两个数据表的用法：
SELECT * FROM 表1 INNER JOIN 表2 ON 表1.字段号=表2.字段号
INNER JOIN 连接三个数据表的用法：
SELECT * FROM (表1 INNER JOIN 表2 ON 表1.字段号=表2.字段号) INNER JOIN 表3 ON 表1.字段号=表3.字段号
INNER JOIN 连接四个数据表的用法：
SELECT * FROM ((表1 INNER JOIN 表2 ON 表1.字段号=表2.字段号) INNER JOIN 表3 ON 表1.字段号=表3.字段号) INNER JOIN 表4 ON Member.字段号=表4.字段号
INNER JOIN 连接五个数据表的用法：
SELECT * FROM (((表1 INNER JOIN 表2 ON 表1.字段号=表2.字段号) INNER JOIN 表3 ON 表1.字段号=表3.字段号) INNER JOIN 表4 ON Member.字段号=表4.字段号) INNER JOIN 表5 ON Member.字段号=表5.字段号
连接六个数据表的用法：略，与上述联接方法类似，大家举一反三吧：）
注意事项：
?在输入字母过程中，一定要用英文半角标点符号，单词之间留一半角空格；
?在建立数据表时，如果一个表与多个表联接，那么这一个表中的字段必须是“数字”数据类型，而多个表中的相同字段必须是主键，而且是“自动编号”数据类型。否则，很难联接成功。

?代码嵌套快速方法：如，想连接五个表，则只要在连接四个表的代码上加一个前后括号（前括号加在FROM的后面，后括号加在代码的末尾即可），然后在后括号后面继续添加“INNER JOIN 表名X ON 表1.字段号=表X.字段号”代码即可，这样就可以无限联接数据表了：

另一种内联

  SELECT b~ebeln
         b~ebelp
         b~menge
         b~netpr
         b~netwr
         b~matnr
         b~txz01
         a~waers
         a~lifnr
         c~name1
    INTO TABLE gt_ekpo
    FROM ekko AS a
   INNER JOIN ekpo AS b
      ON a~ebeln = b~ebeln
   INNER JOIN lfa1 AS c
      ON a~lifnr = c~lifnr
     FOR ALL ENTRIES IN lt_zfi_cgzcfp
   WHERE a~ebeln = lt_zfi_cgzcfp-ebeln
     AND b~ebelp = lt_zfi_cgzcfp-ebelp.
  SORT gt_ekpo BY ebeln ebelp.

sap abap 多个表inner join on

猜你喜欢