StackOverflow2013

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12108414
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2012-08-24T11:20:18.830
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2012-08-24T11:20:18.830
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I'm too late to give you a useful answer to your question, but I came here because I wanted to see if StaCkOverflow has a better answer than the code I'm currently using to test ADODB connections. ...It turns out that the answer is 'No', so I'll post the code for reference: someone else will find it useful. Coding notes: this isn't a generic answer: it's a method from a class encapsulating the ADODB.Connection object, and it assumes the existence of object 'm_objConnect'. TestConnection: a VBA Class method for publishing debugging information for an ADODB.Connection object This prints out the connection string, the current status, a list of ADODB errors (if any) and a full listing of the onnection's named properties. <PRE> Public Sub TestConnection() On Error GoTo ErrTest Dim i As Integer If m_objConnect Is Nothing Then <pre><code>Debug.Print "Object 'm_objConnect' not instantiated." </code></pre> Else <pre><code>Debug.Print m_objConnect.ConnectionString Debug.Print "Connection state = " & ObjectStateString(m_objConnect.State) Debug.Print If m_objConnect.Errors.Count > 0 Then Debug.Print "ADODB ERRORS (" & m_objConnect.Errors.Count & "):" For i = 0 To m_objConnect.Errors.Count With m_objConnect.Errors(i) Debug.Print vbTab & i & ":" _ & vbTab & .Source & " Error " & .Number & ": " _ & vbTab & .Description & " " _ & vbTab & "(SQL state = " & .SqlState & ")" End With Next i End If Debug.Print Debug.Print "CONNECTION PROPERTIES (" & m_objConnect.Properties.Count & "):" For i = 0 To m_objConnect.Properties.Count - 1 Debug.Print vbTab & i & ":" _ & vbTab & m_objConnect.Properties(i).Name & " = " _ & vbTab & m_objConnect.Properties(i).Value Next i </code></pre> End If ExitTest: Exit Sub ErrTest: Debug.Print "Error " & Err.Number & " raised by " & Err.Source & ": " & Err.Description Resume Next End Sub Private Function ObjectStateString(ObjectState As ADODB.ObjectStateEnum) As String Select Case ObjectState Case ADODB.ObjectStateEnum.adStateClosed ObjectStateString = "Closed" Case ADODB.ObjectStateEnum.adStateConnecting ObjectStateString = "Connecting" Case ADODB.ObjectStateEnum.adStateExecuting ObjectStateString = "Executing" Case ADODB.ObjectStateEnum.adStateFetching ObjectStateString = "Fetching" Case ADODB.ObjectStateEnum.adStateOpen ObjectStateString = "Open" Case Else ObjectStateString = "State " & CLng(ObjectState) & ": unknown state number" End Select End Function </PRE> Share and enjoy: and watch out for line-breaks, helpfully inserted where they will break the code by your browser (or by StackOverflow's formatting functions).
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1. POHow can I best use VBA in Access or Excel to test an ODBC connection?
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1. USNigel Heffernan
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