0 0 votes why is option (d) wrong Databases + – amitqy 603 views answer comment Share Follow Print See all 4 Comments 4 4 Comments reply Sayan Bose commented Sep 30, 2018 reply Follow flag Is the ans A ? 0 0 replyShare Deepanshu commented Sep 30, 2018 reply Follow flag option d is false because there is or operator there it means there exist a student or there exist d belongs to lib . and somethings after that not of concern here here if any d belongs to lib. it is always going to accept where that student exist or not and viceversa 0 0 replyShare amitqy commented Sep 30, 2018 reply Follow flag yes answer is A 0 0 replyShare amitqy commented Sep 30, 2018 reply Follow flag If (d) had 'and' in place of 'or' then which one is more suitable (a) or (d) ? 0 0 replyShare Please log in or register to add a comment.
