Error
Error Code:
1238
MySQL Error 1238: Incorrect Variable Scope
Description
MySQL Error 1238 occurs when you attempt to set or access a system variable with an inappropriate scope, or if the variable is read-only. This typically means you're trying to set a global variable at the session level, or vice-versa, or modify a variable that cannot be changed.
Error Message
Variable '%s' is a %s variable
Known Causes
4 known causesSetting Global-Only Variable as Session
You are attempting to set a system variable that is designed to be global-only, but you are trying to set it for the current session.
Setting Session-Only Variable Globally
You are trying to modify a system variable that is meant only for the current session, but you are using the `GLOBAL` scope qualifier.
Modifying a Read-Only Variable
The variable you are attempting to set is a read-only variable, meaning its value cannot be changed by users.
Incorrect Variable Syntax or Name
A typo, incorrect casing, or improper syntax in the variable name or scope qualifier can lead to this error.
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