0 votes 0 votes ___________ operator is used to retain the unmatched rows of relations when they joined. (a) Outer Join (b) Inner Join (c) Natural Join (d) Self Join Databases databases relational-algebra + – mohit jain asked Jun 25, 2022 mohit jain 207 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes Option (a) outer join JAINchiNMay answered Jun 25, 2022 JAINchiNMay comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes @mohit+jain (a) Outer Join …. A set of operations called outer join, can be used when we want to keep all the tuples in R or all those in S or all those in both relations in the result of JOIN …. regardless of whether or not they have matching tuples in other relation…. Bikram 1 answered Jul 13, 2022 Bikram 1 comment Share Follow See all 0 reply Please log in or register to add a comment.