ORA-28557 unknown string for database link to non-Oracle system
Oracle Database Error Code Messages ORA-28557 Description About Help;
Unknown string for database link to non-Oracle system
Error Problem Cause;
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.
How to Solve; ORA-28557 unknown string for database link to non-Oracle system?
Fix Action for Solve Ora-28557;
Contact the database administrator to check setup of the connection and the Heterogeneous Services agent.
