Error
Error Code: ORA-30023

Oracle ORA-30023: Duplicate Undo Tablespace

📦 Oracle Database
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Description

The ORA-30023 error occurs during Oracle database creation when you attempt to specify more than one undo tablespace. Oracle databases are designed to have a single undo tablespace for managing transaction rollback information.
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Error Message

ORA-30023: Duplicate undo tablespace specification
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Known Causes

3 known causes
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Multiple UNDO Tablespace Definitions
The database creation script or command includes multiple `UNDO TABLESPACE` clauses, which is not permitted.
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Typographical Error
A typo in the creation script resulted in the undo tablespace being accidentally specified multiple times.
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Script Generation Error
The script used to create the database was automatically generated and contains a bug that causes the undo tablespace to be defined more than once.
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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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