Comments on: Excel connect to Oracle – 64bit and 32bit issues

By: Rwoeke

Rwoeke — Mon, 27 Aug 2012 15:58:00 +0000

Yes Yes Yes, Saved my Life! ThANKS

By: Haley

Haley — Wed, 13 Jul 2011 04:52:49 +0000

Here is my error message -

“Unable to connect
SQLState =IM004
[Microsoft][ODBC Driver Manager] Driver’s SQLAllocHandle On SQL_HANDLE_ENV failed.

Any suggestions please?

By: Kyle Hailey

Kyle Hailey — Tue, 12 Jul 2011 23:46:51 +0000

What error do you get?
Install a 64 bit Oracle 11g on your PC and edit the registry and make sure
HKEY_CLASSES_ROOT\Wow6432Node\CLSID\{some_code}\InprocServer32
points to the location of oraoledb11.dll in your Oracle install directory.

By: Haley

Haley — Tue, 12 Jul 2011 20:10:33 +0000

Hello, I am running 32 bit Excel 2007 and unable to connect to Oracle 32 bit driver. I am on 64 bit Windows 7.

What can I do to make a connection from Excel to Oracle? I am a bit of novice, so appreciate your help.

By: Marcin Przepiorowski

Marcin Przepiorowski — Thu, 30 Dec 2010 14:22:14 +0000

I found a solution – http://www.oracle.com/technetwork/topics/dotnet/utilsoft-086879.html – ODAC 11.2 Release 3 and Oracle Developer Tools for Visual Studio (11.2.0.2.1) – it is 32 bit instant driver and can be installed on 64 bit Windows 7.

By: Charles Hooper

Charles Hooper — Thu, 30 Dec 2010 01:21:45 +0000

My blog article was originally developed with the 32 bit version of Excel 2007 running on 32 bit Vista. My laptop is currently running the 32 bit version of Excel 2010 on 64 bit Windows 7. I was able to reproduce my blog article’s results on my laptop without too much trouble (I initially skipped the step of adding a reference to the Microsoft ActiveX Data Objects 2.8 Library). This particular laptop has the 64 bit version of Oracle Database 11.2.0.1 installed and the 32 bit version of the 11.2.0.1 Oracle client (custom install with all Windows interfaces except the one with MTS in its name) – the client was installed after the database software, so it is listed first in the PATH environment variable. Of course, this means that two copies of the TNSNAMES.ORA file must be maintained, one in each Oracle home.

As Kyle mentioned, if you have the 32 bit version of Excel, you need the 32 bit Oracle client installed (and preferrably listed first in the PATH environment variable).

Let me know if you need any additional help. By the way, great idea to use Process Monitor.

By: Kyle Hailey

Kyle Hailey — Wed, 29 Dec 2010 17:50:26 +0000

Hi Marcin,
Yeah – it’s possible that the 10g install did other necessary work. Would be interested in nailing down all the steps necessary to get Excel 32bit working on windows 64bit.
Thanks
- Kyle

By: Marcin Przepiorowski

Marcin Przepiorowski — Wed, 29 Dec 2010 15:36:31 +0000

Hi Kyle,

I thing that 10g installation did all work for you with registering all necessary 32 bit DLL’s on 64 bit Windows. I tried today with 64 bit only and even when I added register entry still have a problem – Excel is reading Oracle DLL but there is other issue with 32 bit OLE DB access.

If I found a working workaround I will let you know.

regards,
Marcin