Connecting ms sql server from oracle using db link

Hi,
Source : Oracle 11g on linux
destination : ms sql server 2005
i need to create the db link from oracle to ms sql server to view the tables , is it posibble without configuring the gateways( as looks like it is licenced product)
Please let me know any alternative to achive this
Thanks
PGR

There are 2 gateway - the commercial Database Gateway for Ms SQl Server which requires a license and the Database Gateway for ODBC which is for free. The license for DG4ODBC is included in your database license. You only need to install a suitable ODBC driver on your Linux box (for example use the MS SQl Server ODBC driver for Linux - details can be found here: http://www.microsoft.com/en-gb/download/details.aspx?id=36437 ). and then configure the gateway using the My Oracle Support Note:
How to Configure DG4ODBC on 64bit Unix OS (Linux, Solaris, AIX, HP-UX Itanium) to Connect to Non-Oracle Databases Post Install
[Article ID 561033.1]
- Klaus

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How to connect to a Sql server from Oracle using db link

Hi All,
Does anybody have any idea about how to connect to a sql server from oracle database using db link to syncronize the data? I need to pull the data from Sql server table to Oracle tables and relay messages back to the sql server.
Thank you,
Praveen.

we have 2 products - DG4MSQL and DG4ODBC.
DG4ODBC is for free and requires a 3rd party ODBC driver and it can connect to any 3rd party database as long as you use a suitable ODBC driver
DG4MSQL is more powerfull as it is designed for MS SQL Server databases and it supports many functions it can directly map to SQL Server equivalents - it can also call remote procedures or participtae in distributed transactions. Please be aware DG4MSQL requires a license - it is not for free.
Check out Metalink and you'll find notes how to configure both products.
For a generic overview:
Note.233876.1 Options for Connecting to Foreign Data Stores and Non-Oracle Databases
And the setup notes:
DG4ODBC
Note.561033.1 How to Setup DG4ODBC on 64bit Unix OS (Linux, Solaris, AIX, HP-UX) :
Note.466225.1 How to Setup DG4ODBC (Oracle Database Gateway for ODBC) on Windows 32bit RDBMS.HS-3-2 :
Note.109730.1 How to setup generic connectivity (HSODBC) for 32 bit Windows (Windows NT, Windows 2000, Windows XP, Windows 2003) V817:
Note.466228.1 How to Setup DG4ODBC on Linux x86 32bit
DG4MSQL
Note.466267.1 How to Setup DG4MSQL (Database Gateway for MS SQL Server) on Windows 32bit
Note.562509.1 How to Setup DG4MSQL (Oracle Database Gateway for MS SQL Server) 64bit Unix OS (Linux, Solaris, AIX,HP-UX)
Note.437374.1 How to Setup DG4MSQL (Oracle Database Gateway for MS SQL Server) Release 11 on Linux

Connecting to SQL Server from Solaris using Perl & Oracle.

Hey All,
Using the DBI.pm provided by the default Perl package that comes integrated with Oracle server, I am being able to connect to the Oracle database through Perl.
But is there a way I can connect to SQL Server through Perl using any package provided by Oracle like ODBC or something else (on Solaris)
I am using following version of Oracle server on Solaris 10
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
TIA
Parag

The problem is I cannot install any third party package but I found something. Have a look at this:
bash-3.00$ pwd
/opt/oracle/product/10.2.0.4.0/perl/lib/site_perl/5.8.3/sun4-solaris-thread-multi/Win32
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total 10
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bash-3.00$
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Regarding the tns-12541 error in connecting to sql server from oracle

i need to create a database link from oracle on windows box to sql server.I configured everything but when i am trying to tnsping the sqlserver
it throws me an TNS12541 no listener error.
The listner status is up and the listener works

little confusion here, are you trying to tnsping sql server? tnsping is an Oracle utulity.
To acces sql server from Oracle you may use Transparent Gateway for Microsoft SQL - http://download.oracle.com/docs/cd/B19306_01/gateways.102/b14270/ch3.htm#sthref66 and Heterogeneous Connectivity - http://download.oracle.com/docs/cd/B19306_01/server.102/b14232/intro.htm#sthref33
Best regards.

Connect to SQL Server from Oracle

Does Oracle offer any connectivity to NON-Oracle databases such as SQL Server from within the Oracle database itself, similar to a database link ?

Yes, it's called Heterogeneous Connectivity. Basically how it works is you set up an ODBC data source on the Oracle server
and need to modify the tnsnames.ora and listener.ora files. Once you get it set up it works exactly like a dblink. You should be
able to find information on it in the Oracle manuals or from Metalink. There's also a Heterogenous Connectivity forum on OTN. If
you can't find anything let me know and I can send you some documents on how to set it up. I think the hardest part for you might
be finding a SQL Server ODBC driver for HP-UX.

Accessing SQL Server from ORACLE using Transparent Gateway

So I had downloaded the gateway installer and was following the guide here to set up the Transparent Gateway for SQL Server: http://www.orafusion.com/art_orahs.htm
After I had created the database link, I was prompted the following error when trying to do a simple select statement from the SQL Server DB:
>
ORA-12154: TNS:could not resolve service name
12154. 00000 - "TNS:could not resolve the connect identifier specified"
*Cause:    A connection to a database or other service was requested using
a connect identifier, and the connect identifier specified could not
be resolved into a connect descriptor using one of the naming methods
configured. For example, if the type of connect identifier used was a
net service name then the net service name could not be found in a
naming method repository, or the repository could not be
located or reached.
*Action:
- If you are using local naming (TNSNAMES.ORA file):
- Make sure that "TNSNAMES" is listed as one of the values of the
NAMES.DIRECTORY_PATH parameter in the Oracle Net profile
(SQLNET.ORA)
- Verify that a TNSNAMES.ORA file exists and is in the proper
directory and is accessible.
- Check that the net service name used as the connect identifier
exists in the TNSNAMES.ORA file.
- Make sure there are no syntax errors anywhere in the TNSNAMES.ORA
file. Look for unmatched parentheses or stray characters. Errors
in a TNSNAMES.ORA file may make it unusable.
- If you are using directory naming:
- Verify that "LDAP" is listed as one of the values of the
NAMES.DIRETORY_PATH parameter in the Oracle Net profile
(SQLNET.ORA).
- Verify that the LDAP directory server is up and that it is
accessible.
- Verify that the net service name or database name used as the
connect identifier is configured in the directory.
- Verify that the default context being used is correct by
specifying a fully qualified net service name or a full LDAP DN
as the connect identifier
- If you are using easy connect naming:
- Verify that "EZCONNECT" is listed as one of the values of the
NAMES.DIRETORY_PATH parameter in the Oracle Net profile
(SQLNET.ORA).
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are correct.
- Try enclosing the connect identifier in quote marks.
Error at Line: 3 Column: 27
>
Here are my configuration files:
initMSQL.ora
>
HS_FDS_CONNECT_INFO=webdatasvr:1433.InfoWeb
HS_FDS_TRACE_LEVEL=OFF
HS_FDS_RECOVERY_ACCOUNT=RECOVER
HS_FDS_RECOVERY_PWD=RECOVER
>
listener.ora
>
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC=
(GLOBAL_DBNAME=UGCMAC)
(ORACLE_HOME = C:\oracle\product\10.2.0\db_1)
(SID_NAME=UGCMAC)
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\oracle\product\10.2.0\db_1)
(PROGRAM = extproc)
(SID_DESC =
(SID_NAME = MSQL)
(ORACLE_HOME = C:\oracle\product\11.2.0\tg_1)
(PROGRAM = dg4msql)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
(ADDRESS LIST=
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1524))
>
tnsname.ora
>
UGCMAC =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = UGCMAC)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
MSQL=
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1524))
(CONNECT_DATA =
(SID = MSQL)
(HS=OK)
>
Can anyone assist me? thanks!

Hi kgronau,
>
After changing a listener.ora file you need to STOP and START the listener to get the changes loaded. It looks like your listener is not serving the 1524 port which could be related to the fact that you didn't stop/start the listener after you've edited the listener.ora file.
... But as stated earlier - please do not use a 10.2 listener to start an 11g gateway. Instead configure the listener of the gateway home.
>
I did restart my listener under services.msc whenever I make the changes but there are no effect. Please also note that I can only find "OracleOraDb10g_home1TNSListener" under my services.msc. There is no 11.2 Listener. I did install the gateway and the installation was successful as far as I can tell. But perhaps because there's no 11.2 Listerner under my services.msc, could that mean it was a bad installation?
>
Next point is the tnsping you've used is 11.2. You need to make sure that you use the tnsping of the Oracle Database home as the database initiates the gateway connection so the database home tnsnames,ora needs the tns entry for the gateway.
>
My current PATH environment variables setting is as follow: C:\oracle\product\11.2.0\tg_1\bin;C:\oracle\product\10.2.0\db_1\bin; So perhaps, I just need to ensure the 10.2 ORACE home is the first?
>
As a final tip: There are so many web sites explaining how to configure DG4ODBC - many of them are faulty. If you need a reliable configuration, please have a look at "My Oracle Support" => How to Configure DG4ODBC (Oracle Database Gateway for ODBC) on Windows 32bit to Connect to Non-Oracle Databases Post Install     [Document 466225.1]     )
>
Is there a link?
Edited by: omnri on 21-Jul-2011 23:59

Error while inserting into MS-SQL Server from Oracle using HS

Hi,
I am using hetrogeneous connection.
I want to insert into MS-SQL Server Table by selecting from Oracle Tables.
insert into tableone@mssql select * from table2;
Table2 is in oracle database.
while executing i'm getting
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Hi,
I have developed a java servlet application connection to MS SQL using jtds-1.2.jar. I have try to deploy this application to Oracle 9ias and it works fine.
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>
I have developed a java servlet application
connection to MS SQL using jtds-1.2.jar. I have try
to deploy this application to Oracle 9ias and it
works fine.
However, when I deploy the same application to Oracle
10g (10.1.2.0.2), I encounter this error -
java.sql.SQLException: No suitable driver.
I have copy the jtds-1.2.jar to Ora10g/jdbc/lib,
Ora10g/j2ee/home/lib and also the
Ora10g/j233/OC$J_GENERAL/applications/sampleApp/sample
App/WEB-INF/lib folder, and also setup the data
source via the EM interface.
Is there any configuration that I've forgotten to set?The JAR file needs to be in a place the container can locate it correctly. This is the applib directory for your OC4J instance.
Which I believe from what you have entered is:
Ora10g/j2ee/OC4J_GENERAL/applib
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Connecting ms sql server from oracle using db link

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