如何创建SQL的余额计算

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我要创建SQL的余额计算的，我有4台这样的股票，stocklist，子，子表结果出来不work.Balance错误看到我的代码如何创建SQL的余额计算

SELECT cc.mm,cc.dd,cc.name,cc.q1,cc.q2,cc.staff,(select sum(q1) - sum(q2) 
    from (SELECT s1.qty AS q1,"" AS q2,i.item_id,s2.receive_date as dd,concat('A',s2.id) AS mm 
      FROM mitem i 
      JOIN mstocklist s1 ON s1.item_id=i.item_id 
      JOIN mstock s2 ON s2.id=s1.stock_id 
      JOIN msupplier sp ON sp.supplier_id=s2.supplier_id 
      WHERE s2.receive_date BETWEEN '2016-10-01' AND '2017-09-30' 
      AND i.item_id='3' UNION SELECT "" AS q1,s1.qty AS q2,i.item_id,s2.receive_date as dd,concat('B',s2.id) AS mm 
      FROM mitem i 
      JOIN msublist s1 ON s1.item_id=i.item_id 
      JOIN msub s2 ON s2.id=s1.sub_id 
      WHERE s2.receive_date BETWEEN '2016-10-01' AND '2017-09-30' 
      AND i.item_id='3') as a where a.item_id=cc.item_id and a.mm <= cc.mm) as balance FROM(SELECT i.item_id,s2.receive_date as dd,i.name,s1.qty AS q1,"" AS q2,s2.staff_receive AS staff,concat('A',s2.id) AS mm FROM mitem i 
      JOIN mstocklist s1 ON s1.item_id=i.item_id 
      JOIN mstock s2 ON s2.id=s1.stock_id 
      JOIN msupplier sp ON sp.supplier_id=s2.supplier_id 
      WHERE s2.receive_date BETWEEN '2016-10-01' AND '2017-09-30' 
      AND i.item_id='3' UNION SELECT i.item_id,s2.receive_date as dd,i.name,"" AS q1,s1.qty AS q2,s2.staff_draw AS staff,concat('B',s2.id) AS mm FROM mitem i 
      JOIN msublist s1 ON s1.item_id=i.item_id 
      JOIN msub s2 ON s2.id=s1.sub_id 
      WHERE s2.receive_date BETWEEN '2016-10-01' AND '2017-09-30' 
      AND i.item_id='3') as cc ORDER BY dd ASC

谁可以帮助我愉悦。

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来源

2017-08-07 Marut Phoophaniat

你能提供http://sqlfiddle.com/表defintions和一些数据？此外，它将有助于获得确切的错误消息或显示您获得的内容以及您的期望。 – Myonara

它不会错误，但平衡无效的结果值。 –

所以请显示结果与预期结果。 – Myonara

如果我没有记错的话（你的代码是很难得到槽）：有一个FROM没有选择。这一个：

FROM (SELECT i.item_id 
      , s2.receive_date AS dd 
      , i.name 
      , s1.qty AS q1 
      , "" AS q2 
      , (s1.qty*i.unitcost) AS cost 
      , s2.staff_receive AS staff 
      , s2.id AS mm

你行

来源

2017-08-07 08:51:58 RealCheeseLord

如何创建SQL的余额计算

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