ORA-28557
Error: ORA-28557: unknown string for database link to non-Oracle system
Causa: When attempting to connect to a non-Oracle system through a Heterogeneous Services database link, the agent supporting this non-Oracle system failed to return FDS_CLASS_NAME and/or FDS_INST_NAME. Oracle requires these names to configure the heterogeneous database link.
Acción: Contact the database administrator to check setup of the connection and the Heterogeneous Services agent.
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