Error
Error Code: ORA-28561

Oracle Error ORA-28561: Date Format Mismatch

📦 Oracle Database
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Description

The ORA-28561 error indicates a problem setting the date format during a Heterogeneous Services connection to a non-Oracle system. This typically occurs when the date format specified for the non-Oracle system is invalid or incompatible.
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Error Message

ORA-28561: unable to set date format on non-Oracle system
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Known Causes

4 known causes
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Incorrect Date Format
The HS_NLS_DATE_FORMAT parameter in the Oracle data dictionary is not correctly formatted according to the rules of the target non-Oracle system.
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NLS Parameter Issues
There's a mismatch or conflict in NLS (National Language Support) parameters between the Oracle database and the non-Oracle system.
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Heterogeneous Services Configuration
The Heterogeneous Services agent is not properly configured to handle date format conversions for the specific non-Oracle system.
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Data Dictionary Corruption
The Oracle data dictionary may contain corrupted or incorrect information regarding the date format for the target system.
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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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