Error
Error Code: ORA-28351

ORA-28351: Cluster Key Encryption

📦 Oracle Database
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Description

ORA-28351 occurs when attempting to encrypt a column that is part of the cluster key in a clustered table within an Oracle Database. Cluster keys define how data is physically stored together, and encryption of these key columns is not supported.
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Error Message

ORA-28351: cannot encrypt the column of a cluster key
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Known Causes

3 known causes
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Cluster Key Column Encryption
An attempt was made to directly encrypt a column designated as part of the cluster key definition.
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Altering Existing Clustered Table
You are trying to add encryption to an existing clustered table without considering the cluster key columns.
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Inadvertent Column Selection
The encryption process might have unintentionally selected a cluster key column.
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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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