อะไรคือความแตกต่างสูงสุดเมื่อเสมอ 6 และเล่นมากกว่า 18? ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
What is the highest diff with drawn of 6 and play larger than 18?It is not neccessary to use all the tables.
 table_58057:  "Team" [ text]  "Points" [ real]  "Played" [ real]  "Drawn" [ real]  "Lost" [ real]  "Against" [ real]  "Diff" [ real] 
SELECT MAX("Diff") FROM table_58057 WHERE "Drawn" = '6' AND "Played" > '18'