Check MySQL Field Not Empty
In MySQL, you can use conditional statements to determine if a field is empty. The specific method is as follows:
- Use the IS NOT NULL keyword to determine if a field is not empty, for example:
SELECT * FROM table_name WHERE column_name IS NOT NULL;
- The COALESCE function can be used to determine if a field is empty, for example:
SELECT * FROM table_name WHERE COALESCE(column_name, '') <> '';
Both of the methods can be used to determine if the field is not empty.