สโมสรไหนไม่มีชื่อเล่น ?ไม่จำเป็นที่จะต้องใช้โต๊ะทั้งหมด
which clubs have no nickname ?It is not neccessary to use all the tables.
 table_203_664:  id [ number]  "club" [ text]  "town" [ text]  "founded" [ number]  "nickname" [ text]  "colours" [ text]  "titles" [ number]  "website" [ text] 
SELECT "club" FROM table_203_664 WHERE "nickname" IS NULL