klm เปิดไปกี่ครั้งแล้วมากกว่า barclays scottish open ?ไม่จำเป็นต้องใช้ตารางทั้งหมด
how many more strokes were in the klm open than the barclays scottish open ?It is not neccessary to use all the tables.
 table_203_151:  id [ number]  "no." [ number]  "date" [ text]  "tournament" [ text]  "runner(s)-up" [ text] 
SELECT (SELECT "margin of\nvictory" FROM table_203_151 WHERE "tournament" = 'klm open') - (SELECT "margin of\nvictory" FROM table_203_151 WHERE "tournament" = 'barclays scottish open')