How to resolve the issue of invalid default value settings in MySQL?

If you encounter invalid situations when setting default values for MySQL tables, you can try the following methods to resolve the issue:

1. Check the format of default values: Ensure that the format of default values complies with the data types and format requirements supported by MySQL. For example, date default values must be in the correct date format, and string default values must be enclosed in single quotes.
2. Check the data type of the column: MySQL may reject setting a default value if it does not match the data type of the column. Make sure the default value is compatible with the data type of the column.
3. Check the constraints of the column: If the column has other constraints (such as NOT NULL constraint), it may affect the default value setting. Make sure that the column constraints do not conflict with the default value setting.
4. Check the MySQL version: Sometimes default settings not working may be due to the MySQL version. Make sure your MySQL version is up to date and there are no known default setting issues.

If you have tried the above methods and still cannot solve the problem, it is recommended to check MySQL’s error log for more specific error information, and consider seeking help on the MySQL community or forums.