how can we run sql statments

Hi, 

I want to do like FMDB
`
let rs = try db.executeQuery("select id,count(id) as count from table_cart group by id, selected_addons", values: nil)
                while rs.next() {
                    result["\(rs.int(forColumn: "id"))" ] = "\(rs.int(forColumn: "count"))"
                        print(rs)
                }
`
how can i do it with this library?