The Oracle 10g Database Heterogeneous Connectivity Administrator's Guide contains step-by-step instructions on how to perform this action. Specifically, Chapter 4: Using Heterogeneous Service (HS) Agents details the information you seek. Your steps are as follows:
- Configure your TNSNAMES.ORA to point to a HS agent.
- Configure the listener.
- Create the database link.
- Test the database link.
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