Error
Error Code: ORA-30306

Oracle Error ORA-30306: Invalid Summary Name

📦 Oracle Database
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Description

The ORA-30306 error in Oracle Database indicates an internal issue, specifically that a summary name provided in a query or operation does not exist. This often happens when referencing a materialized view or other summary table with an incorrect or outdated name.
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Error Message

ORA-30306: Internal error
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Known Causes

3 known causes
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Incorrect Summary Name
The summary name used in the SQL query or procedure is misspelled or does not match any existing summary object in the database.
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Summary Object Dropped
The specified summary object (e.g., materialized view) was dropped from the database after the query or procedure was created or last validated.
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Schema Mismatch
The user executing the query does not have the correct permissions or is not referencing the correct schema where the summary object resides.
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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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