Error
Error Code: ORA-28334

Oracle Error ORA-28334: Double Encryption Attempt

📦 Oracle Database
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Description

The ORA-28334 error in Oracle Database indicates an attempt to encrypt a column that is already encrypted. This typically occurs during database schema modifications or application code execution when encryption routines are inadvertently triggered on previously encrypted columns.
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Error Message

column is already encrypted
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Known Causes

2 known causes
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Redundant Encryption Call
Application code or a script is attempting to encrypt a column that has already been encrypted using Transparent Data Encryption (TDE).
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Schema Modification Error
An ALTER TABLE statement or similar DDL operation is attempting to re-encrypt a column without checking its current encryption status.
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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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