Excel SQL，其中未选择所有数据

我已经在一个范围内工作的应用程序中编写了一个导出（Access to Excel）函数

用户有4个单选按钮：A-F、G-M、N-R和S-Z

假设用户选择了

rbtnAF

，这将把所有客户加载到网格中，

Customer\u code

字段以A、B、C、D、E或F开头

要加载到数据中的代码如下所示：

Dim strFields As String = "[Customer_Addresses].[Cust_Code], [Customers].[Customer_Name], [Customer_Addresses].[Contact_Code], [Customer_Addresses].[Contact_Name], " & _
        "[Customer_Addresses].[Contact_Type], [Customer_Addresses].[Add1], [Customer_Addresses].[Add2], [Customer_Addresses].[Add3], [Customer_Addresses].[Add4], " & _
        "[Customer_Addresses].[Add5], [Customer_Addresses].[Postcode], [Customer_Addresses].[Country], [Customer_Addresses].[Telephone], [Customer_Addresses].[Fax], " & _
        "[Customer_Addresses].[Email], [Customer_Addresses].[Mobile_Phone], [Customers].[Customer_Category], [Customers].[Average_Payment_Terms], " & _
        "[Customers].[Notes], [Customers].[salesRep], [Customers].[hoEmail], [Customers].[webpage] FROM Customers " & _
        "INNER JOIN Customer_Addresses ON [Customers].[Customer_Code] =[Customer_Addresses].[Cust_Code]"

    If rbtnAF.Checked = True Then
        sql = "SELECT " & strFields & " WHERE [Customer_Addresses].[Cust_Code] BETWEEN " & _
        "'A*' AND 'F*' ORDER BY [Customer_Addresses].[Cust_Code]"

        Dim da As New OleDbDataAdapter(sql, con)

        Dim ds As New DataSet
        Dim dt As New System.Data.DataTable

        da.Fill(ds)
        dt = ds.Tables(0).Copy()

        ugExport.DataSource = Nothing
        ugExport.DataSource = dt

我认为，这样做很好，我能够将正确的范围加载到网格中，并根据需要导出它们。 然而，用户回来告诉我，并没有加载所有客户

我觉得这有点奇怪，所以我加载了他们的数据库，自己测试了一下。在DB中，有4个客户符合A-F范围，如图所示

但是，当我在导出列表中查看客户范围A-F时，仅显示2个客户

还值得注意的是，在客户列表屏幕中有一个

文本框

，允许用户按客户代码进行搜索-当我只键入一个F时，所有4个客户都会按预期显示

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究竟是什么原因导致导出列表中只显示2个结果，尽管有4条记录符合标准？

检查between语法，您会发现它将*视为一个文字字符，请参见此处

你可以用

Like "[A-F]*"

但事实并非如此