0 votes 0 votes Find the equivalent Tuple Relational Calculus query for the following: R ⟕ S , where R(A, B) and S(A, C) are the relations and ⟕ is the left outer join symbol in Relational Algebra. Sanket_ asked Jan 25, 2017 Sanket_ 1.1k views answer comment Share Follow See 1 comment See all 1 1 comment reply Himanshu Kumar Gupta commented Jul 28, 2020 reply Follow Share Check it below link https://gateoverflow.in/166695/tuple-calculus 0 votes 0 votes Please log in or register to add a comment.
0 votes 0 votes R ⟕ S : {t | ∃ r $\epsilon R$ , ∃ s $\epsilon S$ (r[A]=s[A] ^ t[A]=r[A] ^ t[B]=r[B] ^ t[C]=r[C] ) $\vee$ ∃ r $\epsilon R$ ( ¬∃ s $\epsilon S$ (r[A]=s[A] ^ t[A]=r[A] ^ t[B]=r[B] ^ t[C]=null))} Manoja Rajalakshmi A answered Jan 24, 2018 Manoja Rajalakshmi A comment Share Follow See all 0 reply Please log in or register to add a comment.