3 votes 3 votes Explain it ::: Cardinality ratio not given then how can be find? Databases er-diagram databases + – Harikesh Kumar asked Jan 14, 2018 Harikesh Kumar 538 views answer comment Share Follow See all 4 Comments See all 4 4 Comments reply joshi_nitish commented Jan 14, 2018 reply Follow Share line with arrow head ($->$) means cardinality '1', whereas line without arrow head ($-$) means cardinality 'n'. 1 votes 1 votes Shubhanshu commented Jan 14, 2018 reply Follow Share 3 tables are required. 0 votes 0 votes gari commented Jan 17, 2018 reply Follow Share yes @ Shubhanshu i also got 3 .. but why answer is 2? 0 votes 0 votes BASANT KUMAR commented Oct 5, 2019 reply Follow Share total 3 table is require 0 votes 0 votes Please log in or register to add a comment.
1 votes 1 votes 3 tables are required (MR1), (P) , (R2N) Rajat Agrawal007 answered Sep 18, 2021 Rajat Agrawal007 comment Share Follow See all 0 reply Please log in or register to add a comment.