1 votes 1 votes Why project treats two NULLs as duplicates? Does that mean if NULL appears in two tuples then only one of them will be displayed in the result since project does not allow duplicates? chaser asked Aug 22, 2016 chaser 200 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes This is true but the decision is arbitrary(its not fixed). But I think some convention needs to be followed (rather than rule) and hence, this convention as I think. Read Korth. Nicely given. Sushant Gokhale answered Sep 23, 2016 Sushant Gokhale comment Share Follow See all 0 reply Please log in or register to add a comment.
