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user13312943 wrote:use Transparent Gateway or what ever they call it today
Is it possible to connect from Oracle 11g on AIX to SQL Server 2008 R2? If so, what is the preferred method?
SQL Server has the original table. From Oracle 11g, we want to access data which is in SQL Server real time.
Accessing SQL server from Oracle Database
This link will help
Though you can use Transparent Gateway or Heterogeneous Services DG4ODBC and the SQL Server ODBC Driver for AIX,
I would advise you to consider also to go opposite way - accessing Oracle from MS SQL. It is more easy to configure.
Thanks everyone. Does Database Gateway requires additional license?
Have a look at these Oracle notes for the full information on the gateways -
Master Note for Oracle Gateway Products (Doc ID 1083703.1)
Functional Differences Between DG4ODBC and Specific Database Gateways (Doc ID 252364.1)
Gateway and Generic Connectivity Licensing Considerations (Doc ID 232482.1)
How to Setup DG4MSQL (Oracle Database Gateway for MS SQL Server) 64bit Unix OS (Linux, Solaris, AIX,HP-UX) (Doc ID 562509.1)
How to Configure DG4ODBC on 64bit Unix OS (Linux, Solaris, AIX, HP-UX Itanium) to Connect to Non-Oracle Databases Post Install (Doc ID 561033.1)
The Database Gateway for SQL*Server (DG4MSQL) needs a separate license but the Database Gateway for ODBC (DG4ODBC) is included in your RDBMS license. You only need to provide the third party ODBC driver needed by DG4ODBC.