Error
Error Code:
ORA-28191
Oracle ORA-28191: Invalid Username Characters
Description
The ORA-28191 error occurs when attempting to grant administrative privileges (SYSDBA, SYSOPER, etc.) to a user whose username contains characters outside the ASCII or EBCDIC character sets. Oracle restricts administrative roles to users with standard alphanumeric usernames for security and compatibility reasons.
Error Message
cannot grant administrative privileges to a user with non-ASCII or non-EBCDIC characters in the user name
Known Causes
3 known causesNon-ASCII Username
The target user's username contains characters outside the standard ASCII character set, such as accented letters, special symbols, or characters from other languages.
Non-EBCDIC Username
The target user's username contains characters outside the EBCDIC character set, a character encoding used primarily on IBM mainframe systems.
Incorrect Character Encoding
The database or client character encoding is not correctly configured to handle the characters in the username, even if they are technically ASCII or EBCDIC.
Solutions
Coming SoonDetailed 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