0 votes 0 votes Databases databases er-to-relational er-diagram + – smsubham asked Sep 19, 2018 smsubham 567 views answer comment Share Follow See all 3 Comments See all 3 3 Comments reply arvin commented Sep 19, 2018 reply Follow Share 1 for 1nf and 4 for bcnf...? 0 votes 0 votes Magma commented Sep 19, 2018 reply Follow Share Email and did is multivalued attributes i) 4 tables are required in my opinion 0 votes 0 votes Magma commented Sep 19, 2018 reply Follow Share I got i) 4 ii) 4 I don't know what is 4nf what's the answer given ??? 0 votes 0 votes Please log in or register to add a comment.