Question

有2个表格 - DepoSevkDetay和SatisDetay。两者都有列 - Miktar和UrunID。我需要在Miktar中DepoSevkDetay为UrunID求和，Miktar等于SatisDetay中UPDATE Table_A SET Table_A.[Miktar] = (((Table_B.Miktar)/Table_C.c) + (case when ((Table_B.Miktar) % Table_C.c < Table_C.r) then 1 else 0 end )) FROM [Retail].[dbo].[tb_DepoSevkDetay] AS Table_A INNER JOIN ( SELECT SUM(Miktar)as Miktar, UrunID FROM tb_SatisDetay GROUP BY UrunID ) AS Table_B ON Table_A.[UrunID] = Table_B.[UrunID] INNER JOIN ( SELECT COUNT([UrunID]) AS c, ROW_NUMBER() OVER (ORDER BY UrunID) r, UrunID as UrunID FROM tb_DepoSevkDetay GROUP BY UrunID ) AS Table_C ON Table_B.[UrunID] = Table_C.[UrunID]的总和。查询我写的不能处理它。我究竟做错了什么？考虑到两个表中的记录数不相等

input

Answer 1

我会这样做。首先，我会让Miktar = 0：

UPDATE [Retail].[dbo].[tb_DepoSevkDetay]
SET [Miktar] = 0

然后我会更新所有记录，但首先使用Miktar等于sum（Miktar）/（Count（*））

; with Table_A as (
 SELECT *,
 ROW_NUMBER() OVER (PARTITION BY UrunID ORDER BY UrunID) as rn,
 COUNT(*) OVER (PARTITION BY UrunID) as c
 [Retail].[dbo].[tb_DepoSevkDetay])
UPDATE
    Table_A
SET
    Table_A.[Miktar] = Table_B.Miktar/(Table_A.c)
FROM
    Table_A
    INNER JOIN (
                SELECT SUM(Miktar)as Miktar, UrunID
                FROM tb_SatisDetay
                GROUP BY UrunID ) AS Table_B
        ON Table_A.[UrunID] = Table_B.[UrunID]
WHERE Table_A.c > 0 and Table_A.rn > 1

然后我会更新剩下的[Miktar]，就像这样：

UPDATE
    Table_A
SET
    Table_A.[Miktar] = Table_B.Miktar - Table_C.Miktar
FROM
    [Retail].[dbo].[tb_DepoSevkDetay] AS Table_A
    INNER JOIN (
                SELECT SUM(Miktar)as Miktar, UrunID
                FROM tb_SatisDetay
                GROUP BY UrunID ) AS Table_B
        ON Table_A.[UrunID] = Table_B.[UrunID]
    INNER JOIN (
                SELECT SUM(Miktar)as Miktar, UrunID
                FROM [Retail].[dbo].[tb_DepoSevkDetay]
                GROUP BY UrunID ) AS Table_C
        ON Table_A.[UrunID] = Table_C.[UrunID]
WHERE Table_A.[Miktar] = 0

希望，这很有意义

Answer 2

你的要求不是很清楚。

用一个例子解释

update dd
set Miktar=sd.Miktar
DepoSevkDetay DD
inner join
(select UrunID, sum(Miktar) Miktar
from SatisDetay
group by UrunID)SD
on dd.UrunID=sd.UrunID

使用另一个表中的相同列更新列，并使用另一个表进行gruoping并使sum相等

2 个答案: