Error
Error Code: ORA-29553

Oracle Error ORA-29553: Class Modification Conflict

📦 Oracle Database
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Description

The ORA-29553 error occurs in Oracle Database when attempting to modify a Java class that is currently being used in an active database call. This error prevents accidental data corruption or unexpected behavior due to changes in the executing code.
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Error Message

ORA-29553: class in use: string . string
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Known Causes

3 known causes
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Active Java Execution
A Java stored procedure or function is currently running and utilizing the class you are attempting to modify. 💻
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Concurrent Modification Attempt
Another session or process is simultaneously trying to modify the same Java class. 🔒
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Cached Class Definition
The old definition of the Java class is cached and still in use by the database. ⚙
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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

Find Help

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