18 votes 18 votes Which one of the following is used to represent the supporting many-one relationships of a weak entity set in an entity-relationship diagram? Diamonds with double/bold border Rectangles with double/bold border Ovals with double/bold border Ovals that contain underlined identifiers Databases gatecse-2020 databases er-diagram 1-mark + – Arjun asked Feb 12, 2020 retagged Nov 30, 2022 by Lakshman Bhaiya Arjun 12.9k views answer comment Share Follow See all 2 Comments See all 2 2 Comments reply Abhrajyoti00 commented Dec 4, 2021 i edited by Abhrajyoti00 Jan 6, 2022 reply Follow Share OK I now get it. They have asked about the representation of many-one "RELATIONSHIP"(so definitely it will be something with the diamonds). And since they mentioned "relationship" of a weak entity set, Ans will definitely be option A (Diamonds with double/bold border) 4 votes 4 votes Rajsukh Mohanty commented Feb 4 reply Follow Share yes, this was confusing at first read. it asks about the representation of the many-one relationship of a weak entity set. not representation of a weak entity set. 1 votes 1 votes Please log in or register to add a comment.
Best answer 33 votes 33 votes Answer : A Weak entity set is represented by Rectangles with double/bold border. Prashant. answered Feb 12, 2020 edited Apr 27, 2021 by Lakshman Bhaiya Prashant. comment Share Follow See all 2 Comments See all 2 2 Comments reply pranavbhosle_ commented Dec 20, 2023 reply Follow Share Option should be B, right ? Got it ! Please ignore 1 votes 1 votes Kimo123 commented Feb 7 reply Follow Share __________correct answer is B , (A is just a typing mistake)____________ 0 votes 0 votes Please log in or register to add a comment.
14 votes 14 votes weak entity set represented by Rectangles with double/bold border. weak entity relationships represented by Diamonds with double/bold border. Shaik Masthan answered Feb 12, 2020 Shaik Masthan comment Share Follow See 1 comment See all 1 1 comment reply Ankush Ranjan commented Jan 19 reply Follow Share weak entity relationships is also called identifying relationships 0 votes 0 votes Please log in or register to add a comment.
2 votes 2 votes Option A The entity sets which do not have sufficient attributes to form a primary key are known as weak entity sets and the entity sets which have a primary key are known as strong entity sets. Weak entity represented by rectangle double/bold border Identifying relationship represented with Diamond double /bold border 41 to 45 Ram Swaroop answered Feb 12, 2020 edited Feb 12, 2020 by Ram Swaroop Ram Swaroop comment Share Follow See all 0 reply Please log in or register to add a comment.