1 votes 1 votes closed as a duplicate of: NIELIT 2017 OCT Scientific Assistant A (CS) - Section B: 13 Given relations $R(w,x)$ and $S(y,z),$ the result of SELECT DISTINCT $w,x$ from $R,S$ $R$ has no duplicates and $S$ is non-empty $R$ and $S$ have no duplicates $S$ has no duplicates and $R$ is non-empty $R$ and $S$ has the same number of tuples Databases nielit2017oct-assistanta-it databases sql + – admin asked Apr 1, 2020 • closed Sep 30, 2020 by soujanyareddy13 admin 725 views comment Share Follow See 1 comment See all 1 1 comment reply smsubham commented Apr 1, 2020 reply Follow Share Previous year GATE https://gateoverflow.in/672/gate2000-2-25 0 votes 0 votes Please log in or register to add a comment.