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我有 3 个表格用于计算客户的余额，我需要从发票销售金额 + 发票处理 + 税费 + 表格运费中的总金额计算余额，其中发票编号与发票相同_否然后从具有相同发票编号的收入表中减去金额的总和，然后 + 上一个余额，这是上一张发票的余额（上一张发票可以按日期甚至 ID 找到。我希望结果为看起来像平衡

InVoiNo Cust SaleAmount Handling Taxes Ship Income Last_Balance Balnce
 A1     A           500      300   200 1295   1000         0.00   1295
 A2     A            50       20    30 1860  15000         1295   1755
 B1     B          1000      100    10 1495    100            0   2505
 C1     C           600      277     0  576   1000         0.00    453
 C2     C           600      300   100  636    500          453   1589

这意味着我想从以前的发票中查看并计算每个客户的以前的余额 这是我的表的架构

CREATE TABLE `income` (
  `Id` int(11) NOT NULL,
  `Invoice_No` varchar(12) NOT NULL,
  `Date` date NOT NULL,
  `Amount` int(11) NOT NULL,
  `Customer` varchar(20) NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

INSERT INTO `income` (`Id`, `Invoice_No`, `Date`, `Amount`, `Customer`) VALUES
(1, 'A1', '2017-08-02', 700, 'A'),
(2, 'A1', '2017-08-02', 300, 'A'),
(3, 'A2', '2017-08-02', 1500, 'A'),
(4, 'B1', '2017-08-02', 30, 'B'),
(5, 'B1', '2017-08-02', 60, 'B'),
(6, 'B1', '2017-08-02', 10, 'B'),
(7, 'C1', '2017-08-02', 500, 'C'),
(8, 'C1', '2017-08-02', 500, 'C'),
(9, 'C2', '2017-08-02', 500, 'C');

CREATE TABLE `invoices` (
  `id` int(11) NOT NULL,
  `InVoice_No` varchar(50) NOT NULL,
  `Date` datetime DEFAULT NULL,
  `Customer` varchar(50) NOT NULL,
  `SaleAmount` decimal(32,2) DEFAULT NULL,
  `Handling` decimal(32,2) DEFAULT NULL,
  `Taxes` decimal(32,2) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8;

INSERT INTO `invoices` (`id`, `InVoice_No`, `Date`, `Customer`, `SaleAmount`, `Handling`, `Taxes`) VALUES
(1, 'A1', '2017-08-03 10:19:06', 'A', '500.00', '300.00', '200.00'),
(1, 'D1', '2017-08-03 00:00:00', 'D', '323680.00', '3958.00', '0.00'),
(1, 'A2', '2017-08-03 10:19:06', 'A', '50.00', '20.00', '30.00'),
(1, 'B1', '2017-08-03 10:19:06', 'B', '1000.00', '100.00', '10.00'),
(1, 'C1', '2017-08-03 10:19:06', 'C', '600.00', '277.00', '0.00'),
(1, 'C2', '2017-08-03 10:19:06', 'C', '600.00', '300.00', '100.00'),
(1, 'A3', '2017-08-03 10:19:06', 'A', '60.00', '60.00', '60.00');

CREATE TABLE `shipping` (
  `Id` int(11) NOT NULL,
  `Date` date NOT NULL,
  `Invoice_no` varchar(12) NOT NULL,
  `Ship_Amount` int(11) NOT NULL,
  `Customer` varchar(20) NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

INSERT INTO `shipping` (`Id`, `Date`, `Invoice_no`, `Ship_Amount`, `Customer`) VALUES
(1, '2017-08-09', 'A1', 300, 'A'),
(2, '2017-08-02', 'A1', 500, 'A'),
(3, '2017-08-02', 'B1', 250, 'B'),
(4, '2017-08-03', 'B1', 50, 'B'),
(5, '2017-08-02', 'C1', 125, 'C'),
(6, '2017-08-03', 'C1', 451, 'C'),
(7, '2017-08-02', 'C2', 478, 'C'),
(8, '2017-08-03', 'C2', 158, 'C'),
(9, '2017-08-02', 'B1', 785, 'B'),
(10, '2017-08-03', 'B1', 410, 'B'),
(11, '2017-08-02', 'A1', 45, 'A'),
(12, '2017-08-03', 'A1', 100, 'A'),
(13, '2017-08-02', 'A2', 10, 'A'),
(14, '2017-08-03', 'A3', 60, 'A'),
(15, '2017-08-02', 'A1', 350, 'A'),
(16, '2017-08-03', 'A2', 550, 'A'),
(17, '2017-08-02', 'A2', 150, 'A'),
(18, '2017-08-03', 'A2', 500, 'A'),
(19, '2017-08-02', 'A2', 200, 'A'),
(20, '2017-08-03', 'A2', 450, 'A');


ALTER TABLE `income`
  ADD PRIMARY KEY (`Id`);

ALTER TABLE `invoices`
  ADD PRIMARY KEY (`Customer`,`id`,`InVoice_No`),
  ADD UNIQUE KEY `CalNo` (`InVoice_No`);

ALTER TABLE `shipping`
  ADD PRIMARY KEY (`Id`);


ALTER TABLE `income`
  MODIFY `Id` int(11) NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=10;
ALTER TABLE `shipping`
  MODIFY `Id` int(11) NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=21;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
4

1 回答 1

0

试试这个

SELECT
    P.id,
    P.`Date`,
    P.Customer,
    P.SaleAmount,
    P.Handling,
    P.Taxes,
    P.InVoice_No,
    @SHIP:=COALESCE(E.s, 0) AS Shipping,
    @INCOME:=COALESCE(S.s, 0) AS Income,
    @BOL:=P.SaleAmount+ P.Handling+P.Taxes+COALESCE(E.s,0) - COALESCE(S.s,0) AS Balance,
    @sum := if(@cat = P.Customer,@sum,0)+@BOL AS CatTotal,
    @cat := P.Customer

    FROM invoices AS P
    LEFT OUTER JOIN (SELECT
    shipping.Customer,
    shipping.Invoice_no,
    SUM(shipping.Ship_Amount) AS s
    FROM shipping
    GROUP BY shipping.Customer, shipping.Invoice_no
    ) AS E ON P.Customer = E.Customer AND P.InVoice_No = E.Invoice_no
    LEFT OUTER JOIN (SELECT
    income.Customer,
    income.Invoice_No,
    SUM(income.Amount) AS s
    FROM income
    GROUP BY income.Customer, income.Invoice_No
    ) AS S ON P.Customer = S.Customer AND P.InVoice_No = S.Invoice_No



    , (select
    @cat := '',
    @sum := 0
     ) AS InitVarsAlias



    GROUP BY P.InVoice_No, P.Customer, P.`Date`
    ORDER BY P.Customer, P.`Date`
于 2017-08-06T21:27:21.983 回答