Error
Error Code: ORA-28558

Oracle HS_FDS_CONNECT_STRING Error

📦 Oracle Database
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Description

The ORA-28558 error occurs when attempting to connect to a non-Oracle database using a database link and the `HS_FDS_CONNECT_STRING` initialization parameter is missing from the Oracle server's data dictionary for Heterogeneous Services. This parameter is crucial for defining the connection details to the external system.
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Error Message

ORA-28558: HS_FDS_CONNECT_STRING undefined for non-Oracle system
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Known Causes

4 known causes
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Missing Connect String
The `HS_FDS_CONNECT_STRING` parameter is not defined in the data dictionary for the specific database link.
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Incorrect Parameter Name
The parameter name in the data dictionary is misspelled or does not match the expected format.
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Insufficient Privileges
The user lacks the necessary privileges to access or modify the data dictionary entries related to Heterogeneous Services.
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Incorrect Link Configuration
The database link is not properly configured for Heterogeneous Services.
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Solutions

Coming Soon

Detailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:

General Troubleshooting Tips

  • Check the error message carefully for specific details
  • Review recent changes that might have caused the error
  • Search for the exact error code in the official documentation
  • Check log files for additional context
  • Try restarting the application or service

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