Error
Error Code: ORA-28559

Oracle HS Dictionary Error

📦 Oracle Database
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Description

ORA-28559 is a supplementary error providing information about Heterogeneous Services (HS) configuration problems. It usually appears alongside another error related to accessing a non-Oracle data store via a database link.
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Error Message

ORA-28559: FDS_CLASS_NAME is string , FDS_INST_NAME is string
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Known Causes

3 known causes
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Incorrect Dictionary Entries
The values for FDS_CLASS_NAME and FDS_INST_NAME point to incorrect or missing entries in the Oracle data dictionary tables used by Heterogeneous Services. 💻
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Configuration Mismatch
The configuration defined in Oracle data dictionary does not match the configuration expected by the non-Oracle data store. ⚙
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Database Link Issues
There may be a problem with the database link itself, preventing proper access to the non-Oracle data store and triggering the supplementary error. 🌐
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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

Find Help

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