MAK (Muthusamy Anantha Kumar)
Linked server to Oracle database :
Install and Configure Oracle Client
Get the IP address, database name, userID, password and
port number used in Oracle server, from the Oracle database administrator.
Install the Oracle client on the SQL Server box. Oracle client reads
information about Oracle from the TNSNAMES.ORA file. Edit the Edit the
TNSNAME.ORA file and update it with appropriate information, (ex. Below).
(community = Oraworld.world)
(protocol = tcp)
(host = 18.104.22.168)
(port = 1527)
(connect_data = (sid = oradatabase )
ODBC System DSN for Oracle with the appropriate information on the SQL Server
Create Linked Server for Oracle
Open the Enterprise
manager, and right click on Linked Server under the Security Folder. Create a new
linked server. Select OLE DB Provider for the Oracle Drivers. Give the same
system ODBC DSN name that you created for Oracle in the textbox provided for DataSource.
Provide userid and password in the provider string and security tab.
connection by running the following SQL command in query analyzer.
Select * from openquery(MyOracle, "Select column1 from table1")
These are the major heterogeneous databases that we can access from
SQL server using 3rd party supplied drivers and ODBC drivers. This will
give you a general idea of how SQL server interacts with heterogeneous
databases through Open Database connectivity.