ODBC——调用失败答案

【问题标题】：ODBC -- call failedODBC——调用失败
【发布时间】：2014-02-22 20:41:52
【问题描述】：

我正在使用 MS Access 2007 并使用链接表连接到 SQL Server，并且在我使用 Access 表时可以正常工作的 SQL 查询现在收到上述错误消息，因为我正在使用链接表。我失败的代码如下：

Dim rst As Recordset
Dim db As Database
Dim sql As String


If Not (ToDate.Value = "" And FromDate.Value = "") Then

    Set db = CurrentDb()

    sql = "SELECT dbo_tblSurvey.SurveyID " & _
"FROM dbo_tblSurvey INNER JOIN (dbo_tblInvestigType INNER JOIN dbo_tblInvestigator " &_
"ON dbo_tblInvestigType.InvestigNum = dbo_tblInvestigator.InvestigNum)" & _
"ON dbo_tblSurvey.SurveyID = dbo_tblInvestigType.SurveyID " & _
"WHERE ((" & FromDate & " <= dbo_tblSurvey.RegisDate <= " & ToDate & ")" & _
"AND (dbo_tblInvestigType.InvestigType = 'Primary'))" & _
"ORDER BY dbo_tblSurvey.SurveyID"


    Set rst = db.OpenRecordset(sql, dbOpenDynaset, dbSeeChanges)

我尝试过使用 SQL 查询的格式，发现如果我只是从查询中取出“ToDate”控件，使我的代码如下所示，那么它就可以正常工作：

Dim rst As Recordset
Dim db As Database
Dim sql As String


If Not (ToDate.Value = "" And FromDate.Value = "") Then

    Set db = CurrentDb()

    sql = "SELECT dbo_tblSurvey.SurveyID " & _
"FROM dbo_tblSurvey INNER JOIN (dbo_tblInvestigType INNER JOIN dbo_tblInvestigator " &_
"ON dbo_tblInvestigType.InvestigNum = dbo_tblInvestigator.InvestigNum)" & _
"ON dbo_tblSurvey.SurveyID = dbo_tblInvestigType.SurveyID " & _
"WHERE ((" & FromDate & " <= dbo_tblSurvey.RegisDate)" & _
"AND (dbo_tblInvestigType.InvestigType = 'Primary'))" & _
"ORDER BY dbo_tblSurvey.SurveyID"


    Set rst = db.OpenRecordset(sql, dbOpenDynaset, dbSeeChanges)

“ToDate”控件是用于输入日期的文本输入控件，除了名称不同外，其他方面都与“FromDate”控件相同。关于为什么会发生这种情况的任何想法？感谢任何人都可以提供的任何帮助。

【问题讨论】：

标签： sql sql-server ms-access odbc

【解决方案1】：

我认为该代码构建了一个类似于以下内容的WHERE 子句：

WHERE [one date] <= dbo_tblSurvey.RegisDate <= [another date]

相反，目标是类似于 ...

WHERE [one date] <= dbo_tblSurvey.RegisDate
      AND dbo_tblSurvey.RegisDate <= [another date]

或者...

WHERE dbo_tblSurvey.RegisDate BETWEEN [one date] AND [another date]

【讨论】：