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Home » API reference » Drupal 7 » query.inc » QueryConditionInterface » QueryConditionInterface::exists

6 methods override QueryConditionInterface::exists() in Drupal 7

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.
UpdateQuery::exists in includes/database/query.inc
Implements QueryConditionInterface::exists().