[Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified : Wierd issue

问题

I am working on one .vbs file in which I am connecting to DB using below lines of code and than running some queries.

Set cm = CreateObject("ADODB.Command")
cm.ActiveConnection = "Driver={Microsoft ODBC for Oracle};Server ="+sInst+"; UID="+sUID+";PWD="+sPWD
cm.CommandType = 1 
cm.CommandText = sSQL 
cm.Execute()
Set cm = Nothing

Strange thing for me is when I am copying these lines to QTP and run it from QTP, it's working fine. But when running .vbs file (by double clicking and from cmd), it is giving me below error:

[Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified

I've other machine on which it's working fine both the way. I tried my best to verify all the things in both the machine, but I am not getting it.

I appreciate any thought / help / suggestion.

Thanks.

Quick update:
As vbs is not working I tried googled and create batch file with below line:

C:\Windows\SysWoW64\cscript.exe //NoLogo filepath\xyz.vbs

And its working now.
So question is how run vbs using ODBC from SysWoW64 and not from system32...?

回答1:

Processes on 64-bit Windows are either pure 32-bit or pure 64-bit.
By default 64-bit Windows is executing your vbscript in a 64-bit engine which cannot call any 32-bit DLLs.

64-bit VBScript will use 64-bit ODBC which will only be able to call 64-bit Oracle software (if installed).
32-bit VBScript will use 32-bit ODBC which will only be able to call 32-bit Oracle software (if installed).

As you have discovered the 32-bit versions of most built-in Windows programs are hidden away from view on 64-bit Windows. You have to explicitly run the 32-bit version of ODBC administrator or CSCRIPT yourself.
From what you describe, you seem to have 32-bit Oracle software installed and configured on your machine. 64-bit Oracle software usually needs to be installed and configured separately.

回答2:

Try following:

Go to the following path:

C:\Windows\SysWOW64\odbcad.exe

Double click and pop-up will be opened:

1. Go to System DSN

2. Add

3. Now Choose Oracle in Oraclient11g_home 1

4. Now one pop up again open with the following fields:

   Data Source Name:PQALN07 (DB NAME)

   Description: PQALN07

   TNS Service Name: PQALN07 (DB NAME)

   User Id : RISK (Schema Name)

5. By adding above DSN your problem will got resolved.

Now run your VB code using macro and you'll get no error this time.

来源：https://stackoverflow.com/questions/20227569/microsoftodbc-driver-manager-data-source-name-not-found-and-no-default-drive