public function SelectQuery::notExists in Drupal 7
Sets a condition that the specified subquery returns no values.
Parameters
SelectQueryInterface $select: The subquery that must not contain results.
Return value
QueryConditionInterface The called object.
Overrides QueryConditionInterface::notExists
File
- includes/database/ select.inc, line 1068 
Class
- SelectQuery
- Query builder for SELECT statements.
Code
public function notExists(SelectQueryInterface $select) {
  $this->where
    ->notExists($select);
  return $this;
}