Обсуждение: Connecting to Postgres using Windows 7

I'm relatively new to postgres.  I've got a Visual Basic (VB)
application that i would like to connect to a Postgres database using
ODBC .  Both the VB application and postgres are on my laptop and both
work beautifully independent of each other.  Trouble is, I have a
windows 7 64bit OS and therefore I have been unable to get VB to connect
to the database.  My code is as follows:

     Public Class Form1

         Dim cCon As ADODB.Connection

         Private Sub Button1_Click(ByVal sender As System.Object, ByVal
e As System.EventArgs) Handles Button1.Click

             On Error GoTo EH

             cCon.ConnectionString =
"DSN=MyDatabase;uid=MyUserID;pwd=MyPassword"

             cCon.Open()
             MsgBox("O.K.", vbInformation, "Connection Message")
             Exit Sub
     EH:
             MsgBox(Err.Description, vbCritical, "Error Message")
         End Sub

         Private Sub Form1_Load(ByVal sender As System.Object, ByVal e
As System.EventArgs) Handles MyBase.Load
             cCon = New ADODB.Connection
         End Sub
     End Class

When I try to connect, all I get is a "Server does not exist or access
is denied" error.  I've tried configuring ODBC using odbcad32.exe as it
seems that is necessary on a 64 bit OS, but I'm not sure if that even
the right way to go.

Any help i could get would be much appreciated.

Thanks,

Geoff

>----- Original Message -----
>From: Geoffrey Becker

>I'm relatively new to postgres.  I've got a Visual Basic (VB)
>application that i would like to connect to a Postgres database using
>ODBC .  Both the VB application and postgres are on my laptop and both
>work beautifully independent of each other.  Trouble is, I have a
>windows 7 64bit OS and therefore I have been unable to get VB to connect
>to the database.  My code is as follows:

>     Public Class Form1

>         Dim cCon As ADODB.Connection

>         Private Sub Button1_Click(ByVal sender As System.Object, ByVal
>e As System.EventArgs) Handles Button1.Click

>             On Error GoTo EH

>             cCon.ConnectionString =
>"DSN=MyDatabase;uid=MyUserID;pwd=MyPassword"

Is this your actual connection string?  If your using a DSN does it
specify the Server Name and Port where PostgreSQL is listening?

See: http://www.connectionstrings.com/postgre-sql

>             cCon.Open()
>             MsgBox("O.K.", vbInformation, "Connection Message")
>             Exit Sub
>     EH:
>             MsgBox(Err.Description, vbCritical, "Error Message")
>         End Sub

>         Private Sub Form1_Load(ByVal sender As System.Object, ByVal e
>As System.EventArgs) Handles MyBase.Load
>             cCon = New ADODB.Connection
>         End Sub
>     End Class

>When I try to connect, all I get is a "Server does not exist or access
>is denied" error.  I've tried configuring ODBC using odbcad32.exe as it
>seems that is necessary on a 64 bit OS, but I'm not sure if that even
>the right way to go.

You may need to install the psqlODBC 64 bit driver if you trying to connect
from a 64 bit machine.

>Any help i could get would be much appreciated.

>Thanks,

>Geoff

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