ศิลปินคนไหนได้คะแนนน้อยที่สุด ?ไม่จำเป็นต้องใช้ตารางทั้งหมด
which artist earned the least number of points ?It is not neccessary to use all the tables.
 table_204_915:  id [ number]  "draw" [ number]  "artist" [ text]  "song" [ text]  "points" [ number]  "place" [ text] 
SELECT "artist" FROM table_204_915 ORDER BY "points" LIMIT 1