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NigelRocks

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Connecting to SQL Server from VB6

Hello,

I'm trying to connect to a SQL Server (2005) database from Visual Basic 6.0.  The attached code produces no errors, yet never fills the dataset.

Thanks in advance for your help.


Dim thisWorkspace As DAO.Workspace
    Set thisWorkspace = CreateWorkspace("", "admin", "", dbUseODBC)
    
    Dim thisConnection As DAO.Connection
    Set thisConnection = thisWorkspace.OpenConnection("", , , "ODBC;DATABASE=KnowledgeTracker;DSN=KTracker")
    
    Set gdbKnowledgeTracker = thisConnection.Database
    
    Dim rs As DAO.Recordset
    
    Dim sSQL As String
    sSQL = "SELECT * FROM Problems"
    Set rs = gdbKnowledgeTracker.OpenRecordset(sSQL)

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3_S

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NigelRocks

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Are you sure that what you posted is VB6 code?  My compiler choked on this:

    Dim thisConnection As Connection
    Set thisConnection = New Adodb.Connection

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>My compiler choked on this: ...  Set thisConnection = New Adodb.Connection

That's because DAO does not have a Connection object, only a Database object.  ADO (ADODB) has a connection object.

The code 3_S posted for you using ADO only should work for you.
I added the Microsoft ActiveX Data Objects 2.8 Library reference.

I got a "variable not defined" error on this line;
thisconnecton.Open = "Provider=sqloledb;Network Library=DNETLIB;datasource=SQLSERVER,1433;Initial catalog=KnowledgeTracker;Trusted Connection=Yes;Encrypt=YES"


These two lines above it define the object:
Dim thisConnection As ADODB.Connection
 Set thisConnection = New ADODB.Connection



If this code has worked for you, there must be something VERY different about our IDEs.

Did you copy paste the line with the 'variable not defined' error
thisconnecton is not the variable you defined:  thisConnection is  (letter i is missing in you posted code)

You can check this by typing thisconnection and then the point.  If no propositions are made then you typed your variable wrong.
I would also recommend that you always add option explicit to every form/module/class you add in a project.  With this option you must declare every variable else you get compiler error to warn you.

I use VB6 with sp5
Sorry. The i was a typo of mine in thisConnection
Yes, it was a typo.

I also got an error on:

thisConnection.Open = "  "

It has to be

thisConnection.Open(" ")


I'll get back to you about what happens.
{very wild guess}

Lose the = sign

thisconnecton.open "Provider=sqloledb;Network Library=DNETLIB;datasource=SQLSERVER,1433;Initial catalog=KnowledgeTracker;Trusted Connection=Yes;Encrypt=YES"
It doesn't like this line:


thisConnection.Open ("Provider=sqloledb;Network Library=DNETLIB;datasource=SQLSERVER,1433;Initial catalog=KnowledgeTracker;Trusted Connection=Yes;Encrypt=YES")


Where in the above string would I tell it what server to use?

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This is the string that did it:


thisConnection.Open "Driver={SQL Server};Server=COPS14\COPSDEV;Database=KnowledgeTracker;Trusted_Connection=Yes;"