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04.09.2007 at 10:24AM PDT, ID: 22499991
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8.2

How to verify an ADO connection to an OLAP Server is ok?

Asked by soco180 in OLAP, Miscellaneous Programming, Visual Basic Programming

Tags: , , ,

Hi there,

Short Story:
    Is there a way to return the system time of an OLAP server using a MDX expression?
    I am looking for the equivalent of "SELECT GETDATE()".

Long Story:
    Basically I am trying prove I have a valid and open connection to a OLAP Server that I am about to execute a MDX expression against.
    My App is dumb in the sense that I don't know the DB Schema, I am only trying to execute an expression that I will soon after pass off as a recordset.
    My code is probably going to be something like this....

    Public Function ConnectionOK(MyCon As ADODB.Connection) As Boolean
    On Error GoTo EH
    Dim lTryCount As Long
          lTryCount = 0
    Try_Again:
          lTryCount = 1 + lTryCount
        'if this next line executes without error, then assume the connection valid
          MyCon.Execute "SELECT GETDATE()" 'or what ever the MDX equivalent happens to be
          ConnectionOK = True
    LEAVE:
    Exit Function
    EH:
          If lTryCount = 1 Then
                Set MyCon = Nothing
                Set MyCon = New ADODB.Connection
                MyCon.ConnectionString = "Provider=MSOLAP;Integrated Security=SSPI;" & _
                            "trusted_connection=yes;" & _
                            "Persist Security Info=True;" & _
                            "Initial Catalog=" & m_strDBName & _
                            ";Data Source=" & m_strDataSource
                Resume Try_Again
          Else
                ConnectionOK = False
                Resume LEAVE
          End If
    End Function
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[+][-]04.09.2007 at 02:55PM PDT, ID: 18878922

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About this solution

Zones: OLAP, Miscellaneous Programming, Visual Basic Programming
Tags: connection, olap, mdx, ado
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Solution Provided By: jkaios
Participating Experts: 1
Solution Grade: A
 
 
[+][-]04.10.2007 at 07:17AM PDT, ID: 18882499

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

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[+][-]04.13.2007 at 10:38AM PDT, ID: 18907244

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

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