Error
Error Code: ORA-28265

Oracle Error ORA-28265: Invalid SYS_ Namespace

📦 Oracle Database
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Description

The ORA-28265 error occurs in Oracle Database when attempting to create or use a namespace that begins with 'SYS_'. Oracle reserves namespaces starting with 'SYS_' for internal system components; therefore, user-defined namespaces cannot utilize this prefix.
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Error Message

ORA-28265: Namespace beginning with 'SYS_' is not allowed.
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Known Causes

3 known causes
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Reserved Namespace Used
Attempting to create a namespace beginning with 'SYS_' which is reserved for Oracle system use.
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Accidental Naming Convention
Unintentionally using a 'SYS_' prefix while defining a custom namespace.
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Incorrect Configuration
A configuration script or application code attempts to define a namespace starting with 'SYS_'.
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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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