Nette\Database\Drivers\SqlsrvDriver::getForeignKeys PHP Method

    public function getForeignKeys($table)
    {
        // Does't work with multicolumn foreign keys
        $keys = [];
        foreach ($this->connection->query("\n\t\t\tSELECT\n\t\t\t\tfk.name AS name,\n\t\t\t\tcl.name AS local,\n\t\t\t\ttf.name AS [table],\n\t\t\t\tcf.name AS [column]\n\t\t\tFROM\n\t\t\t\tsys.foreign_keys fk\n\t\t\t\tJOIN sys.foreign_key_columns fkc ON fk.object_id = fkc.constraint_object_id\n\t\t\t\tJOIN sys.tables tl ON fkc.parent_object_id = tl.object_id\n\t\t\t\tJOIN sys.columns cl ON fkc.parent_object_id = cl.object_id AND fkc.parent_column_id = cl.column_id\n\t\t\t\tJOIN sys.tables tf ON fkc.referenced_object_id = tf.object_id\n\t\t\t\tJOIN sys.columns cf ON fkc.referenced_object_id = cf.object_id AND fkc.referenced_column_id = cf.column_id\n\t\t\tWHERE\n\t\t\t\ttl.name = {$this->connection->quote($table)}\n\t\t") as $row) {
            $keys[$row->name] = (array) $row;
        }
        return array_values($keys);
    }