Sets a condition that the specified subquery returns values.

Parameters

SelectQueryInterface $select: The subquery that must contain results.

Return value

QueryConditionInterface The called object.

Overrides QueryConditionInterface::exists

File

includes/database/select.inc, line 809

Class

SelectQueryExtender

The base extender class for Select queries.

Code

public function exists(SelectQueryInterface $select) {
 $this->query 
 ->exists ($select);
 return $this;
}

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