0 votes 0 votes By looking into er table how do we know it is 1:1 or N:N relation Databases databases + – Dulqar asked Jan 14, 2017 Dulqar 238 views answer comment Share Follow See all 3 Comments See all 3 3 Comments reply Sushant Gokhale commented Jan 14, 2017 reply Follow Share the side on which there is arrow is one side. So, this is many-many 0 votes 0 votes Dulqar commented Jan 14, 2017 reply Follow Share Here there is no arrows . So how to find it ? 0 votes 0 votes Sushant Gokhale commented Jan 14, 2017 reply Follow Share @Dulqar. Plz dont attempt questions without going through ref books. If you have doubts even after reading books, then there are lot of people to solve your doubt. 0 votes 0 votes Please log in or register to add a comment.