Error
Error Code: ORA-29861

Oracle ORA-29861: Unusable Domain Index

📦 Oracle Database
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Description

The ORA-29861 error occurs when Oracle attempts to access a domain index that is in an invalid state. This state can be LOADING (being built), FAILED (due to a previous error), or UNUSABLE (marked by a DDL operation).
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Error Message

ORA-29861: domain index is marked LOADING/FAILED/UNUSABLE
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Known Causes

3 known causes
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Index Building in Progress
The domain index is currently being built using a CREATE INDEX statement and is not yet available for use.
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Failed Index Build
A previous attempt to build the domain index failed, leaving it in a FAILED state.
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DDL Operation Invalidated Index
A DDL operation (e.g., ALTER TABLE) has marked the domain index as UNUSABLE, requiring a rebuild.
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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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