Error
Error Code: ORA-28438

ORA-28438: Incomplete Tablespace Encryption

📦 Oracle Database
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Description

The ORA-28438 error indicates that an `ALTER TABLESPACE` encryption operation (ENCRYPT, DECRYPT, or REKEY) did not complete successfully for all data files within the tablespace. This usually happens when data files are offline or inaccessible during the operation.
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Error Message

ORA-28438: ALTER TABLESPACE string ENCRYPTION string string operation not complete
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Known Causes

4 known causes
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Offline Data Files
One or more data files belonging to the tablespace were offline or unavailable during the encryption operation. 💻
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Incomplete File Name Conversion
The `FILE_NAME_CONVERT` clause used during the operation did not correctly map all data files. ⚙
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Resource Constraints
Insufficient system resources (CPU, memory, I/O) may have interrupted the encryption process. 💻
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Pre-existing Errors
Underlying database or storage issues may have prevented the encryption process from completing. ⚠
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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