如何创建SQL过程计算总会费(How to create sql procedure for cal

谁能帮我出从三个表计算总会费一个CREATE PROCEDURE语句？ 这里有与他们一起的数据表..

表格1

accountno   shipername   shiperaddress   Executivename
   001      john         123, London          Paul
   002      Robi         127, China           Soma

TABLE_2

Executivename shipername shiperaddress accountno currentamount anotheramount    
   paul          john     123,london     001         10500       12000
   soma          robi     127,china      002         11000        6800

表3

accountno    Date        ReceivedAmount    MoneyReceiptNo
   001       1/1/2012       6500              G 256412
   002       1/2/2012       5200              D 246521

在这里，我要提及的是，总的会费会被计算

(currentamount + anotheramount) - receivedamount

我试图通过以下存储过程来做到这一点。

CREATE PROCEDURE [dbo].[rptexetotaldues] @Executivename varchar(20) 
AS BEGIN
    select 
        table_1.Executivename, 
        sum(table_2.currentamount + table_2.anotheramount
             - table_3.receivedamount ) as TotalDues 
    from 
        table_1 
    full join 
        table_2 on table_1.accountno = table_2.accountno 
    join 
        table_3 on table_3.accountno = table_1.accountno 
    where 
        table_1.Executivename = @Executivename 
    group by 
        table_1.Executivename
end

但是，这并不工作。 请有人帮助我。

Answer 1:

你的样品为我工作。 我唯一改变的是“日期”，以transdate。 我强烈建议避免“日期”作为列名。 我也改变了走样了一点，但本来应该还好吧。 我thinkg @Gordon Linoff是正确的 - 你可以有NULLS的问题。

DECLARE @table_1 TABLE (accountno char(5), shipername char(20), shiperaddress char(40), Executivename varchar(20))
INSERT INTO @table_1 VALUES ('001', 'john', '123, London', 'Paul')
INSERT INTO @table_1 VALUES ('002','Robi','127, China','Soma')

DECLARE @table_2 TABLE (Executivename varchar(20), shipername char(20), shiperaddress char(40),
                        accountno char(20), currentamount decimal(10,2), anotheramount decimal(10,2))

INSERT INTO @table_2 VALUES ('paul', 'john','123,london','001',10500, 12000)
INSERT INTO @table_2 VALUES ('soma', 'robi', '127,china', '002', 11000, 6800)

DECLARE @table_3 TABLE(accountno char(20), tranDate datetime, ReceivedAmount decimal(10,2), MoneyReceiptNo char(10))
INSERT INTO @table_3 VALUES ('001', '1/1/2012', 6500, 'G 256412')
INSERT INTO @table_3 VALUES ('002', '1/2/2012', 5200,'D 246521')


DECLARE @Executivename varchar(20) 

--SET @Executivename = 'Paul'
SET @Executivename = 'Soma'

    select 
        tb1.Executivename, 
        sum(tb2.currentamount + tb2.anotheramount - tb3.receivedamount ) as TotalDues 
    from 
        @table_1 tb1
        full join @table_2 tb2 on tb1.accountno = tb2.accountno 
        join @table_3 tb3 on tb3.accountno = tb1.accountno 
    where 
        tb1.Executivename=@Executivename group by tb1.Executivename

下面是我的结果：

Executivename   TotalDues
Soma    12600.00

Answer 2:

我能想到的两个问题。 首先是该账号在任一表1或表2这将增加额外的行复制。

第二个是，有在表三行不在表2。这意味着总和内添加是NULL，因为值中的一个是NULL。 您可以按以下方法之一来解决此：

    sum(table_2.currentamount) + sum(table_2.anotheramount) - sum(table_3.receivedamount) 

要么

    sum(coalesce(table_2.currentamount, 0.0) + coalesce(table_2.anotheramount, 0.0) - coalesce(table_3.receivedamount, 0.0) ) as TotalDues 

Answer 3:

我认为这将是一个UNION查询，下面的例子更直截了当：

CREATE PROCEDURE [dbo].[rptexetotaldues] @Executivename varchar(20) 
AS BEGIN

SELECT SUB.ACCOUNTNO, SUM(SUB.DUE) AS TOTALDUE FROM 
  (SELECT ACCOUNTNO
        , CURRENTAMOUNT AS DUE
   FROM TABLE_2
   INNER JOIN TABLE_1 -- WILL ONLY WORK IF ACCOUNTNO IS UNIQUE WITHIN TABLE_1
   ON TABLE_1.ACCOUNTNO = TABLE2.ACCOUNTNO
   WHERE TABLE_1.EXECUTIVENAME = @Executivename

   UNION ALL

   SELECT ACCOUNTNO
        , ANOTHERAMOUNT AS DUE
   FROM TABLE_2
   INNER JOIN TABLE_1 
   ON TABLE_1.ACCOUNTNO = TABLE2.ACCOUNTNO
   WHERE TABLE_1.EXECUTIVENAME = @Executivename

   UNION ALL

   SELECT ACCOUNTNO
        , -RECEIVEDAMOUNT AS DUE -- NOTE NEGATIVE SIGN
   FROM TABLE 3
   INNER JOIN TABLE_1 
   ON TABLE_1.ACCOUNTNO = TABLE3.ACCOUNTNO
   WHERE TABLE_1.EXECUTIVENAME = @Executivename
   ) SUB

GROUP BY SUB.ACC

文章来源: How to create sql procedure for calculating Total dues