Error
Error Code:
3061
MySQL Error 3061: Illegal User Variable Name
Description
This error indicates that a user-defined variable name in your SQL statement does not conform to MySQL's naming conventions. It typically occurs when the variable name contains disallowed characters, starts with a number, or is otherwise syntactically invalid.
Error Message
User variable name '%s' is illegal
Known Causes
3 known causesContains Disallowed Characters
The user variable name includes characters (e.g., spaces, hyphens, or special symbols other than underscore) that are not permitted in MySQL user variable names.
Name Starts with a Digit
The user-defined variable name begins with a numeric digit, which violates MySQL's naming conventions for variables.
Conflict with Reserved Keywords (Rare)
Although user variables are prefixed with '@', using a name that is a MySQL reserved keyword in specific complex contexts might lead to parsing conflicts.
Solutions
Coming SoonGeneral 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