RE: Re: Querying MS Sql from Oracle

From: Goulet, Richard <Richard.Goulet_at_parexel.com>
Date: Wed, 6 Jan 2010 08:55:06 -0500
Message-ID: <6B0D50B70F12BD41B5A67F14F5AA887F0346BBAB_at_us-bos-mx022.na.pxl.int>

If memory is running correctly, Oracle still has a TRANSPARENT GATEWAY to MS Sql that does an extremely fine job at handling the datatypes and needs very little care & feeding.  

Dick Goulet
Senior Oracle DBA/NA Team Lead
PAREXEL International  

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From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Kellyn Pedersen Sent: Wednesday, January 06, 2010 12:59 AM To: niall.litchfield_at_gmail.com
Cc: oracle-l_at_freelists.org; achoto_at_american.edu Subject: Re: Re: Querying MS Sql from Oracle

Niall has a good point here... This was actually a requirement, (limiting datatypes) to keep some developers from getting "too fancy" on the Oracle side in one environment, another has to do with some of the issues I've seen with certain applications using the new Oracle version through Reporting Services, (anyone with .Net apps out there, anyone, Bueller, Bueller? ")) It can be a bit buggy still, where the old standard of OLEDB, even though they do complain about it, has been stable in any environment I've used it in...

There is something to be said for these two points though- Do you have a requirement to support a wide variety of datatypes and do you have the luxury of installing the Oracle client on the SQL Server.  

Good points, Niall...:)

Kellyn Pedersen
Multi-Platform DBA
I-Behavior Inc.
http://www.linkedin.com/in/kellynpedersen  

"Go away before I replace you with a very small and efficient shell script..."

• On Tue, 1/5/10, niall.litchfield_at_gmail.com <niall.litchfield_at_gmail.com> wrote:

	From: niall.litchfield_at_gmail.com <niall.litchfield_at_gmail.com>
	Subject: Re: Re: Querying MS Sql from Oracle
	To: "Kellyn Pedersen" <kjped1313_at_yahoo.com>
	Cc: oracle-l_at_freelists.org, achoto_at_american.edu
	Date: Tuesday, January 5, 2010, 4:09 AM
	
	
	I don't see why you'd be slammed for that, it's a perfectly

sensible approach. I'm interested that you recommend the MS OLEDB provider though rather than a current Oracle one. The former doesn't support all Oracle datatypes particularly well (or in some cases at all). It would of course require a client install on the sql server which may be beyond acceptability :(         

        Niall         

        On 4 Jan 2010 19:46, Kellyn Pedersen <kjped1313_at_yahoo.com> wrote:

> I may get slammed for this, but as a DBA in both platforms and
utilizing both products in the past, I have to ask- Is there anyway you can simply utilize the Microsoft OLE DB Provider for Oracle, adding the Oracle database server as a linked server on the SQL Server side and query from there?

>
>
> I find this to be more stable and require less DBA upkeep....
>
>
>
> Kellyn Pedersen
>
>
> Multi-Platform DBA
>
>
> I-Behavior Inc.
>
>
> http://www.linkedin.com/in/kellynpedersen
>
>
>
>
>
> "Go away before I replace you with a very small and efficient
shell script..."

>
>
> --- On Mon, 1/4/10, Ana Choto achoto_at_american.edu> wrote:
>
>
>
> From: Ana Choto achoto_at_american.edu>
> Subject: Querying MS Sql from Oracle
> To: oracle-l_at_freelists.org
> Date: Monday, January 4, 2010, 9:05 AM
>
>
>
>
>
> We have some MS Sql databases and need to run some queries
from Oracle. Our Oracle database is at 9.2.0.8 version running on Solaris. According to Oracle we need to set up a Database Gateway for ODBC either on a Windows platform, Linux or Solaris.

>
> Our MS Sql server is 64 bit, and apparently DG4ODBC is only
certified for 32 bit on Windows and Linux. If on Solaris a third party like the ODBC driver from Data Direct Technologies is needed, and the 9i database needs to be patched. After installing DG4ODBC a listener and tnsnames.ora need to be configured. Then a database link needs to be created on Oracle.

>
> The 9i database has something called hsodbc but Oracle says
that is not certified anymore.

>
> Has someone in the list done something like this?
>
>
> Thank you
>
> Ana
>
> ---------------------------------------------------------
> Ana E. Choto
> Oracle Database Administrator
> American University
> Office of
>
> Information Technology
> Phone (202) 885-2275
> Fax (202) 885-2224
>
> ** AU IT will never ask for your password via e-mail.
> Don't share your password with anyone!
>
>
>
>
>
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>

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Received on Wed Jan 06 2010 - 07:55:06 CST