ras bodik เผยแพร่เยอะหรือไม่ ไม่จำเป็นต้องใช้ตารางทั้งหมด
does ras bodik publish a lot ?It is not neccessary to use all the tables.
 field:  fieldid [ int] 
SELECT COUNT(paper.paperid) FROM author, paper, writes WHERE author.authorname = 'ras bodik' AND writes.authorid = author.authorid AND writes.paperid = paper.paperid