Error
Error Code: ORA-30029

Oracle Error ORA-30029: No Undo Tablespace

📦 Oracle Database
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Description

The ORA-30029 error indicates that the Oracle database instance does not have an active undo tablespace assigned. This prevents the database from managing transaction rollback information, leading to transaction failure.
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Error Message

ORA-30029: no active undo tablespace assigned to instance
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Known Causes

4 known causes
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Missing Undo Tablespace
No undo tablespace was created during database setup or it was dropped.
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Undo Tablespace Offline
The designated undo tablespace is offline and unavailable for use.
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Incorrect Initialization Parameter
The `UNDO_TABLESPACE` initialization parameter is not set or points to a non-existent tablespace.
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Tablespace Corruption
The undo tablespace has become corrupted and cannot be activated.
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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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