Documentation & API reference
6 methods override QueryConditionInterface::isNull()
- DatabaseCondition::isNull in drupal/
includes/ database/ query.inc - Implements QueryConditionInterface::isNull().
- DeleteQuery::isNull in drupal/
includes/ database/ query.inc - Implements QueryConditionInterface::isNull().
- MergeQuery::isNull in drupal/
includes/ database/ query.inc - Implements QueryConditionInterface::isNull().
- SelectQuery::isNull in drupal/
includes/ database/ select.inc - Sets a condition that the specified field be NULL.
- SelectQueryExtender::isNull in drupal/
includes/ database/ select.inc - Sets a condition that the specified field be NULL.
- UpdateQuery::isNull in drupal/
includes/ database/ query.inc - Implements QueryConditionInterface::isNull().