将 Union All 与多个子查询结合使用，总计 return

Question

我有一个查询可以提取当天的各种每日统计数据。

这是我的查询：

SELECT     e.Location_Name AS Location, c.customers AS Customers, '$' + CONVERT(nvarchar, CAST(c.net_sales AS money), 1) AS Sales, '$' + CONVERT(nvarchar, 
           CAST(e.Ticket_Goal AS Decimal(10, 2))) AS [TKT Goal], '$' + CONVERT(nvarchar, c.Ticket_avg) AS TKT, CAST(d.Labor_Hours / c.customers AS Decimal(10, 2)) 
           AS Labor, CONVERT(nvarchar, CAST(d.Labor_Dollars / c.net_sales * 100 AS Decimal(10, 1))) + '%' AS [%]
FROM         (SELECT Store_Number, SUM(Net_Sales) AS net_sales, SUM(Customers ) AS Customers , CAST(SUM(Net_Sales) / SUM(Customers ) AS decimal(10, 2)) 
                                              AS Ticket_avg
                       FROM  daily_sales_tb AS a
                       WHERE (Operations_Day = DATEADD(d, DATEDIFF(d, 0, GETDATE()), 0))
                       GROUP BY Store_Number) AS c INNER JOIN
                          (SELECT     Store_Number, SUM(Labor_Hours) + SUM(Overtime_Labor_Hours) AS Labor_Hours, SUM(Labor_Dollars) + SUM(Overtime_Labor_Dollars) 
                                                   AS Labor_Dollars
                            FROM          daily_labor_tb AS b
                            WHERE      (Operations_Day = DATEADD(d, DATEDIFF(d, 0, GETDATE()), 0))
                            GROUP BY Store_Number) AS d ON c.Store_Number = d.Store_Number INNER JOIN
                          (SELECT     Store_Number, Ticket_Goal, Location_Name
                            FROM          dds.Location_Table_Info_Tb) AS e ON c.Store_Number = e.Store_Number

这是输出：

Location       Customers      Sales    TKT Goal   TKT   Labor   %
1                 100        00      .00          1.2  20%
2                 200        00      .00     .50   1.3  15%
3                 300        00      .00     .67   1.4  20%
4                 100        0       .00           1.1  20%

这是我希望输出的样子（添加总行）：

 Location            Customers      Sales    TKT Goal   TKT   Labor   %
    1                 100        ,000      .00          1.2  20%
    2                 200        ,500      .00     .50   1.3  15%
    3                 300        ,000      .00     .67   1.4  20%
    4                 100        0        .00           1.1  20%
   TOTAL:             900        ,300       -        .89    -    -

我尝试使用 Union All -

SELECT     e.Location_Name AS Location, c.customers AS Customers, '$' + CONVERT(nvarchar, CAST(c.net_sales AS money), 1) AS Sales, '$' + CONVERT(nvarchar, 
                      CAST(e.Ticket_Goal AS Decimal(10, 2))) AS [TKT Goal], '$' + CONVERT(nvarchar, c.Ticket_avg) AS TKT, CAST(d.Labor_Hours / c.customersAS Decimal(10, 2)) 
                      AS Labor, CONVERT(nvarchar, CAST(d.Labor_Dollars / c.net_sales * 100 AS Decimal(10, 1))) + '%' AS [%]
FROM         (SELECT     Store_Number, SUM(Net_Sales) AS net_sales, SUM(Customers ) AS Customers , CAST(SUM(Net_Sales) / SUM(Customers ) AS decimal(10, 2)) 
                                              AS Ticket_avg
                       FROM          daily_sales_tb AS a
                       WHERE      (Operations_Day = DATEADD(d, DATEDIFF(d, 0, GETDATE()), 0))
                       GROUP BY Store_Number) AS c INNER JOIN
                          (SELECT     Store_Number, SUM(Labor_Hours) + SUM(Overtime_Labor_Hours) AS Labor_Hours, SUM(Labor_Dollars) + SUM(Overtime_Labor_Dollars) 
                                                   AS Labor_Dollars
                            FROM          daily_labor_tb AS b
                            WHERE      (Operations_Day = DATEADD(d, DATEDIFF(d, 0, GETDATE()), 0))
                            GROUP BY Store_Number) AS d ON c.Store_Number = d.Store_Number INNER JOIN
                          (SELECT     Store_Number, Ticket_Goal, Location_Name
                            FROM          dds.Location_Table_Info_Tb) AS e ON c.Store_Number = e.Store_Number

                            UNION ALL
                            select 'TOTAL:', SUM(Customers ), '$' + Convert(nvarchar,Cast(SUM (net_sales) as money),1), '-', Convert(nvarchar,CAST(SUM(Net_Sales) / SUM(Customers ) AS money)), '-', convert(nvarchar,'-')
                            from daily_sales_tb

当我运行这个查询时，我得到一个 SQL 错误：

Msg 8115, Level 16, State 6, Line 1
Arithmetic overflow error converting varchar to data type numeric.

如何解决这个问题才能正确输出数据？

我运行在 vb.net 中执行此查询，填充数据集，然后将数据集转换为 HTML table。转换完成后，我将 table 作为电子邮件正文通过电子邮件发送。

Answer 1

问题是查询试图将文本 'TOTAL:' 转换为数字。它这样做是为了匹配先前在该列中具有 'Store_Number' 的查询。要修复，请尝试将 'Store_Number' 转换为字符类型：

改变这个：

SELECT     Store_Number

为此：

SELECT     Convert(nvarchar,Store_Number) as Store_Number,

Answer 2

由于您没有提到列的确切数据类型，解决方案只是检查这 2 件事，它应该可以解决错误：

UNION ALL 之前的列类型应该与 UNION ALL 之后的列类型匹配。这意味着如果列的类型为 Varchar，则 UNION ALL 语句前后应存在相同的 Varchar 类型。
您可能需要检查 table 的原始列类型、您在查询中使用的转换类型和 "make sure the field is actually convertible to the type you are trying to convert"（例如：'TOTAL: can如果第一列（位置）是文本字段，则添加到 UNION ALL 中，但如果它是整数字段，则会抛出错误） - 需要对所有列进行类似的检查

注意：发生错误是因为您试图将文本字段转换为十进制，而原始字段中没有兼容的十进制值

Answer 3

您的第一个 select 中有 CAST(d.Labor_Hours / c.customers AS DECIMAL(10,2)) AS Labor，您的 Union 中有 '-'。只需将 Labor 转换为 NVARCHAR，就像您是主要 select

将 Union All 与多个子查询结合使用，总计 return

Using Union All with Multiple Sub Queries to return Total

sql

vb.net

sql-server

dataset

sql-server-2008