Question

我有2张存储收入的表：

id    name     date         price     isDel
1     abc     2012-01-26    613.90       0
2     cde     2012-01-25    530.10       0

和费用：

id     name   price    date         isDel
1      b1     334.90   2012-01-26   0
2      b1     41.90    2012-01-25   0
3      d1     61.90    2012-01-25   0

我想得到如下结果：

date        total income         total expense             profile n loss
2012-01-25  530.10                103.80                    426.30
2012-01-26  613.90                344.90                    26.90

感谢。有人能提供SQL解决方案吗？我确实在stackoverflow上引用了一些成员的问题和答案，但我不能修改为想要我需要。请帮忙。

Answer 1

如果您希望每天获得盈利/亏损，请执行以下操作：

SELECT Inc.date, TotalInc, TotalExp, TotalInc - TotalExp AS ProfitNLoss
FROM
(
  SELECT date, SUM(price) as TotalInc
  FROM Income
  WHERE isdel = 0
  GROUP BY date) as Inc
LEFT OUTER JOIN 
(

  SELECT date, SUM(price) as TotalExp
  FROM Expense
  WHERE isdel = 0
  GROUP BY date) as Exp

ON Inc.date = Exp.date

UNION

SELECT Exp.date, TotalInc, TotalExp, TotalInc - TotalExp AS ProfitNLoss
FROM
(
  SELECT date, SUM(price) as TotalInc
  FROM Income
  WHERE isdel = 0
  GROUP BY date) as Inc
RIGHT OUTER JOIN 
(

  SELECT date, SUM(price) as TotalExp
  FROM Expense
  WHERE isdel = 0
  GROUP BY date) as Exp

ON Inc.date = Exp.date

Answer 2

哎呀，这是“给我代码”的问题，但我会给你一些提示：

所以你需要做的是：

创建所有唯一日期的列表（遗憾的是我没有找到一种方法来生成sql中没有表查询或没有长php数组的日期列表，如果有人知道这样做的方法我会很乐意添加它到anser），所以你必须这样做：

SELECT date FROM income GROUP BY date;
-- If there's a chance that you'll have record in expenses and not in income:
(SELECT date FROM income GROUP BY date)
    UNION (SELECT date FROM expenses GROUP BY date;)
    GROUP BY date;
-- Or create table containing just list of all dates (best option)

然后加入所有独特日期的费用和收入：

SELECT SUM(expenses.price) AS expenses, SUM(incomes.price) AS income, dates.date
    FROM unique_dates -- or from your subquery
    LEFT JOIN incomes ON incomes.date = unique_dates.date
    LEFT JOIN expenses ON expenses.date = unique_dates.date
    GROUP BY unique_dates.date

哦，我不知道profile n loss是什么意思。

Answer 3

感谢Pheiberg并感谢您的教授回复。我刚做了一些小改动，所以当表没有记录或返回NULL时它会返回0，所以即使给定-ve值，Profit计算仍然可以进行校准。这里的代码分享给你们。

注意：即时通讯使用MySQL

SELECT Inc.create_dt, IFNULL(TotalInc,0), IFNULL(TotalExp,0), IFNULL(TotalInc,0) - IFNULL(TotalExp,0) AS ProfitNLoss
FROM
(
  SELECT create_dt, SUM(price) as TotalInc
  FROM income
  WHERE IsDel= 0
  GROUP BY create_dt) as Inc
LEFT OUTER JOIN 
(
  SELECT create_dt, SUM(price) as TotalExp
  FROM expenses
  WHERE IsDel= 0
  GROUP BY create_dt) as Exp

ON Inc.create_dt= Exp.create_dt
UNION
SELECT Exp.create_dt, IFNULL(TotalInc,0), IFNULL(TotalExp,0), IFNULL(TotalInc,0) - IFNULL(TotalExp,0) AS ProfitNLoss
FROM
(
  SELECT create_dt, SUM(price) as TotalInc
  FROM income
  WHERE IsDel= 0
  GROUP BY create_dt) as Inc
RIGHT OUTER JOIN 
(
  SELECT create_dt, SUM(price) as TotalExp
  FROM expenses
  WHERE IsDel= 0
  GROUP BY create_dt) as Exp
ON Inc.create_dt= Exp.create_dt

SQL查询：计算给定2个表中的配置文件或丢失

3 个答案: