多表关联时进行关联更新

现有表A（CBO_MATERIAL）、B（CBO_MATCATEGORY）、C（MARA22@LINK_ECOLOGY9），将提供表A的code（A:code，C:matnr_ext）值，来进行更新表A的关联表B的ID(ID)值，表A的code值又关联了表C的code值，表C的字段phdra关联表B的code值，此时进行更新

1.先获取根据提供的（表A的code = 表C的matnr_ext）的值，获取在表C能关联到表B和表A的值：PRDHA = 表B的code，ID为表B的ID

select DISTINCT m.MATNR_EXT, m.PRDHA, cmy.ID FROM MARA22@LINK_ECOLOGY9 m
    INNER JOIN CBO_MATCATEGORY CMY ON CMY.CODE = M.PRDHA
    where m.matnr_ext IN (
     '4000006012', 
			'4000001153', 
			'4000001151', 
			'4000000111', 
			'4000000088', 
			'4000000039', 
			'4000000026', 
			'4000000006', 
			'4000000005', 
			'4000001315'
    )

2.进行更新

UPDATE CBO_MATERIAL C SET (C.MATCATEGORY_ID, c.BIDMATCATEGORY_ID) = (
  SELECT ID, ID FROM(
    select DISTINCT m.MATNR_EXT, m.PRDHA, cmy.ID FROM MARA22@LINK_ECOLOGY9 m
    INNER JOIN CBO_MATCATEGORY CMY ON CMY.CODE = M.PRDHA
    where m.matnr_ext IN (
     '4000006012', 
			'4000001153', 
			'4000001151', 
			'4000000111', 
			'4000000088', 
			'4000000039', 
			'4000000026', 
			'4000000006', 
			'4000000005', 
			'4000001315'
    )
  ) k WHERE c.CODE = k. matnr_ext
)WHERE c.CODE IN (
			'4000006012', 
			'4000001153', 
			'4000001151', 
			'4000000111', 
			'4000000088', 
			'4000000039', 
			'4000000026', 
			'4000000006', 
			'4000000005', 
			'4000001315'
)

标签：matnr,多表,CBO,更新,关联,ext,code,PRDHA,ID
来源： https://blog.csdn.net/Mou_O/article/details/121827594