0 votes 0 votes iita asked Dec 3, 2016 iita 331 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes b.. must be the answer as first inner one is computed then further filtered by outter Nit9 answered Dec 3, 2016 Nit9 comment Share Follow See all 4 Comments See all 4 4 Comments reply iita commented Dec 3, 2016 reply Follow Share at case then option C and Option A should be equivalent..?? isn't it..?? correct me if am mistaken. 0 votes 0 votes Nit9 commented Dec 3, 2016 i edited by Nit9 Dec 3, 2016 reply Follow Share yes.. it would be the case, pi and sigma are used to reduce data set 0 votes 0 votes ankyAS commented Dec 5, 2016 reply Follow Share if both of the list are mutually exclusive then what will be the result? let say list2 contains b,c,d and list1 contains a,e then output will be null? but in the case of option it will never be null. 0 votes 0 votes Nit9 commented Dec 5, 2016 reply Follow Share yes, π requires common attributes 0 votes 0 votes Please log in or register to add a comment.