public function QueryConditionInterface::exists in Drupal 7

Sets a condition that the specified subquery returns values.

Parameters

SelectQueryInterface $select: The subquery that must contain results.

Return value

QueryConditionInterface The called object.

6 methods override QueryConditionInterface::exists()

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

Implements QueryConditionInterface::exists().

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

Implements QueryConditionInterface::exists().

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

Implements QueryConditionInterface::exists().

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

Sets a condition that the specified subquery returns values.

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

Sets a condition that the specified subquery returns values.

... See full list

File

includes/database/query.inc, line 93

Non-specific Database query code. Used by all engines.

Class

QueryConditionInterface

Interface for a conditional clause in a query.

Code

public function exists(SelectQueryInterface $select);