DatabaseCondition::isNotNull in includes/database/query.inc

Implements QueryConditionInterface::isNotNull().

DeleteQuery::isNotNull in includes/database/query.inc

Implements QueryConditionInterface::isNotNull().

MergeQuery::isNotNull in includes/database/query.inc

Implements QueryConditionInterface::isNotNull().

SelectQueryExtender::isNotNull in includes/database/select.inc

Sets a condition that the specified field be NOT NULL.

SelectQuery::isNotNull in includes/database/select.inc

Implements QueryConditionInterface::isNotNull().

UpdateQuery::isNotNull in includes/database/query.inc

Implements QueryConditionInterface::isNotNull().