RE: Querying MS Sql from Oracle
- From: "Sweetser, Joe" <JSweetser@xxxxxxxx>
- To: <kjped1313@xxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>, <achoto@xxxxxxxxxxxx>
- Date: Mon, 4 Jan 2010 13:04:20 -0700
I would agree with this method and we use it successfully where I work.
There are some minor gotchas we found around dates and/or timestamps.
One specific one is that SQL 2000 (not sure about 2005 and higher L)
does not like Oracle's timestamp datatype and will error out if a query
includes a timestamp column. We got around that by creating views with
something like this for the timestamp columns:
to_date(to_char(CREATED_TIME, 'DD-MON-YYYY HH24:MI:SS'),
'DD-MON-YYYY HH24:MI:SS') created_time
In essence, converting timestamp data to character and then to date. A
little convoluted but it gets the data visible to SQL.
hth,
-joe
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Kellyn Pedersen
Sent: Monday, January 04, 2010 12:47 PM
To: oracle-l@xxxxxxxxxxxxx; achoto@xxxxxxxxxxxx
Subject: Re: Querying MS Sql from Oracle
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@xxxxxxxxxxxx> wrote:
From: Ana Choto <achoto@xxxxxxxxxxxx>
Subject: Querying MS Sql from Oracle
To: oracle-l@xxxxxxxxxxxxx
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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