“表达式不正确或太复杂”

Question

我相信我需要学习如何更优雅地编写以下代码。问题是我正在使用一堆表（不是我创建了这些表，否则我会将其简化为一个。）&我需要同时查询所有表的信息。我正在使用 MS Access，这就是我的 SQL 语句目前的样子：

SELECT [Date (mm-dd-yy)], [Operator], [Operator Number], [Product Part Number], [Feet Produced], [Run Time], [Feet Produced]/[Run Time] AS [AVG Prod]
From [tblReports_16Braiding]
WHERE ((([Product Part Number])=[Forms]![AdminProdForm].[PartNumber]) AND [Date (mm-dd-yy)] Between [Forms]![AdminProdForm].[StartDate] And [Forms]![AdminProdForm].[EndDate]);
    Union
    SELECT [Date (mm-dd-yy)], [Operator], [Operator Number], [Product Part Number], [Feet Produced], [Run Time], [Feet Produced]/[Run Time] AS [AVG Prod]
From  [tblReports_24Braiding]
WHERE ((([Product Part Number])=[Forms]![AdminProdForm].[PartNumber]) AND [Date (mm-dd-yy)] Between [Forms]![AdminProdForm].[StartDate] And [Forms]![AdminProdForm].[EndDate]);
    Union
SELECT [Date (mm-dd-yy)], [Operator], [Operator Number], [Product Part Number], [Feet Produced], [Run Time], [Feet Produced]/[Run Time] AS [AVG Prod]
From [tblReports_Cabling]
WHERE ((([Product Part Number])=[Forms]![AdminProdForm].[PartNumber]) AND [Date (mm-dd-yy)] Between [Forms]![AdminProdForm].[StartDate] And [Forms]![AdminProdForm].[EndDate]);
Union
SELECT [Date (mm-dd-yy)], [Operator], [Operator Number], [Product Part Number], [Feet Produced], [Run Time], [Feet Produced]/[Run Time] AS [AVG Prod]
 From [tblReports_CompChain]
WHERE ((([Product Part Number])=[Forms]![AdminProdForm].[PartNumber]) AND [Date (mm-dd-yy)] Between [Forms]![AdminProdForm].[StartDate] And [Forms]![AdminProdForm].[EndDate]);
Union
SELECT [Date (mm-dd-yy)], [Operator], [Operator Number], [Product Part Number], [Feet Produced], [Run Time], [Feet Produced]/[Run Time] AS [AVG Prod]
From [tblReports_Jacketing]
WHERE ((([Product Part Number])=[Forms]![AdminProdForm].[PartNumber]) AND [Date (mm-dd-yy)] Between [Forms]![AdminProdForm].[StartDate] And [Forms]![AdminProdForm].[EndDate]);
Union
SELECT [Date (mm-dd-yy)], [Operator], [Operator Number], [Product Part Number], [Feet Produced], [Run Time], [Feet Produced]/[Run Time] AS [AVG Prod]
From [tblReports_Primary]
WHERE ((([Product Part Number])=[Forms]![AdminProdForm].[PartNumber]) AND [Date (mm-dd-yy)] Between [Forms]![AdminProdForm].[StartDate] And [Forms]![AdminProdForm].[EndDate]);
Union
SELECT [Date (mm-dd-yy)], [Operator], [Operator Number], [Product Part Number], [Feet Produced], [Run Time], [Feet Produced]/[Run Time] AS [AVG Prod]
From [tblReports_Printing]
WHERE ((([Product Part Number])=[Forms]![AdminProdForm].[PartNumber]) AND [Date (mm-dd-yy)] Between [Forms]![AdminProdForm].[StartDate] And [Forms]![AdminProdForm].[EndDate]);
Union
SELECT [Date (mm-dd-yy)], [Operator], [Operator Number], [Product Part Number], [Feet Produced], [Run Time], [Feet Produced]/[Run Time] AS [AVG Prod]
From [tblReports_Respool]
WHERE ((([Product Part Number])=[Forms]![AdminProdForm].[PartNumber]) AND [Date (mm-dd-yy)] Between [Forms]![AdminProdForm].[StartDate] And [Forms]![AdminProdForm].[EndDate]);
UNION SELECT [Date (mm-dd-yy)], [Operator], [Operator Number], [Product Part Number], [Feet Produced], [Run Time], [Feet Produced]/[Run Time] AS [AVG Prod]
 From [tblReports_Stranding]
WHERE ((([Product Part Number])=[Forms]![AdminProdForm].[PartNumber]) AND [Date (mm-dd-yy)] Between [Forms]![AdminProdForm].[StartDate] And [Forms]![AdminProdForm].[EndDate]);

简而言之，我只是想将大量表格合并在一起。都具有相同的字段，从其他两个字段的简单划分创建一个新字段，然后使用表单查询联合表。每当我现在运行它时，都会收到一条错误消息，指出我的 SQL 错误或太复杂。我猜想太复杂了，因为我正在处理九个表中的超过 20,000 条记录。

编辑~~~

删除我最大的表（大约 8000 个条目）上的操作表达式后，代码可以正常工作。取出这个操作：

[Feet Produced]/[Run Time] AS [AVG Prod]
    From  [tblReports_24Braiding]

但是在我的查询中我需要这个字段。我无法在表本身中执行此操作，因为它是一个链接表，因此我无法保存对它的更改。

Answer 1

显式声明参数，让Access免于猜测：

PARAMETERS
    [Forms]![AdminProdForm].[PartNumber]) Long,
    [Forms]![AdminProdForm].[StartDate] DateTime,
    [Forms]![AdminProdForm].[EndDate] DateTime;

SELECT 
    [Date (mm-dd-yy)], [Operator], [Operator Number], [Product Part Number], [Feet Produced], [Run Time], [Feet Produced]/[Run Time] AS [AVG Prod]
FROM 
    [tblReports_16Braiding]
WHERE 
    ((([Product Part Number])=[Forms]![AdminProdForm].[PartNumber]) AND [Date (mm-dd-yy)] Between [Forms]![AdminProdForm].[StartDate] And [Forms]![AdminProdForm].[EndDate]);

UNION ALL

SELECT ...  <snip>