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

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