0 0 votes Databases made-easy-test-series databases joins + – vaishali jhalani 1.1k views answer comment Share Follow Print See all 5 Comments 5 5 Comments reply Show 2 previous comments Aditya Tewari commented Feb 2, 2017 reply Follow flag D is not a primary key...And we have to consider for the maximum possible value. 0 0 replyShare vaishali jhalani commented Feb 2, 2017 reply Follow flag A NATURAL JOIN is a JOIN operation that creates an implicit join clause for you based on the common columns in the two tables being joined. 0 0 replyShare Smriti012 commented Feb 2, 2017 reply Follow flag Finally we would be getting key as AEH of the complete joins... hence =80*10=800 tuples 0 0 replyShare Please log in or register to add a comment.