ปีแรกสุดคือปีใด?ไม่จำเป็นต้องใช้ตารางทั้งหมด
What was the earliest year?It is not neccessary to use all the tables.
 table_28310:  "Rank" [ real]  "Player" [ text]  "Year" [ real]  "Opponent" [ text] 
SELECT MIN("Year") FROM table_28310