0 votes 0 votes Databases databases er-to-relational + – radha gogia asked Sep 6, 2018 radha gogia 419 views answer comment Share Follow See all 3 Comments See all 3 3 Comments reply srestha commented Sep 6, 2018 reply Follow Share I havenot got what is outer box of teacher teaches scientist 0 votes 0 votes radha gogia commented Sep 6, 2018 reply Follow Share It is aggregated as one entity . 0 votes 0 votes Harsh Kumar commented Dec 12, 2018 reply Follow Share Extended ER Model is not in the syllabus, I guess. 0 votes 0 votes Please log in or register to add a comment.