Quick Reference
The MySQL IFNULL() function returns a specified value if the expression is NULL.
SELECT IFNULL(NULL, 'chicken');Output
IFNULL(NULL, 'chicken')
chickenSyntax
IFNULL(expression, alt_value)Parameters
| Parameter | Description |
|---|---|
| expression | The expression to test whether is NULL (required) |
| alt_value | The value to return if expression is NULL (required) |
SQL Notes:
- Any work being done to modify the structure of a database or delete tables or the the database itself should only be done after making a recent backup
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