Insert rows into a SQL Server table from Oracle

Question

I have an Oracle 10G database running on a Unix environmnent and have a requirement to write a PL/SQL job that will be running on the Oracle database that will populate tables in another database which is a microsoft SQL Server database running on a Windows platform.

Having looked around, it looks like this is possible via database links. Has anyone got any more information on this? For example how reliable is the connection and are there any disadvantages in having such a setup?

Chances are that i would have limited access to the SQL Server database. Is the above possible without having to make any changes to the SQL server database? (Assuming the DBA on the SQL server has configured the database to be accessed from other databases)

Thanks

Answer 1

Use the Oracle feature DG4ODBC , it is as reliable as any normal DBLINK setup, to the SQL Server side it will look like any other sort of client connection. You only need to do anything more elaborate if you are planning to do distributed transactions between Oracle and SQL Server (ie 2 Phase Commit). You will probably also want UnixODBC and FreeTDS .