Error
Error Code:
4008
MySQL Error 4008: Non-Integer Variable Type
Description
This error indicates that a variable, typically within a MySQL stored procedure, function, or trigger, has been declared or assigned a value that is not compatible with an integer data type, but is used in a context expecting an integer. It commonly arises when performing arithmetic operations, comparisons, or assignments where an integer type is implicitly or explicitly required.
Error Message
The variable %s has a non-integer based type
Known Causes
3 known causesIncorrect Variable Declaration
A variable is declared with a non-integer data type (e.g., VARCHAR, DECIMAL, DATETIME) but is subsequently used in an integer-specific context.
Assignment of Non-Integer Value
A variable correctly declared as an integer type is assigned a value that is inherently non-integer (e.g., a string 'hello', a float 3.14).
Implicit Type Conversion Failure
MySQL attempts to implicitly convert a non-integer value to an integer, but the value is not representable as an integer, leading to a type mismatch.
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