| 1.20.x query.inc | public QueryConditionInterface::isNull($field) |
Sets a condition that the specified field be NULL.
Parameters
$field: The name of the field to check.
Return value
QueryConditionInterface: The called object.
File
- includes/
database/ query.inc, line 70 - Non-specific Database query code. Used by all engines.
Class
- QueryConditionInterface
- Interface for a conditional clause in a query.
Code
public function isNull($field);