0 votes 0 votes If R1 with N1 tuples and R2 with N2 tuples are two relations which are not union compatible the number of tuples in R1 union R2 is? Databases relational-algebra databases + – Hakuna Matata asked May 15, 2018 Hakuna Matata 816 views answer comment Share Follow See all 10 Comments See all 10 10 Comments reply Show 7 previous comments Hakuna Matata commented May 16, 2018 reply Follow Share Agreed! 0 votes 0 votes Hakuna Matata commented May 16, 2018 reply Follow Share I answered both 0 and N2, let's see what happens. 0 votes 0 votes pradeepchaudhary commented Jun 9, 2018 reply Follow Share Hey ,can you please explain how the minimum number of tuples is zero when they are not union compatible 0 votes 0 votes Please log in or register to add a comment.