Question
Download Solution PDFIn an E-R diagram attributes are represented by -
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is option 1.
Concept:
An entity-relationship model (ER model) uses a diagram called an Entity Relationship Diagram to illustrate the structure of a database (ER Diagram). ER diagram has three main components:
- Entity.
- Attribute.
- Relationship.
Entity:
An entity is a type of data item or component. In an ER diagram, an entity is represented by a rectangle.
Attribute:
An attribute describes the property of an entity. An attribute is represented as Oval OR ellipse in an ER diagram.
Relationship:
The relationship is nothing but an association among two or more entities. The Diamonds symbol represents relationship.
Lines:
The link attributes to Entity Sets and Entity sets to Relationship Set.
Hence the correct answer is Ellipse.
Additional Information
Last updated on Feb 18, 2025
-> The RRB JE EC CBT 2 Exam Date has been released which will be conducted on 19th and 20th March 2025.
-> Earlier, RRB JE Electronics Engineer CBT 1 Answer Key has been released. The examination took place on 16th to 18th December 2024.
-> A total of 7911 vacancies have been announced for Junior Engineers. The distributed vacancy is yet to be announced. The application dates will also be announced soon.
-> This is a central government job and the selected candidates will get a salary according to the 7th pay commission's Level 6. The starting pay would be Rs.35,400, excluding all benefits.
-> The maximum age of the candidates should not exceed 33 years. The candidates must go through the RRB JE EC syllabus and exam pattern. They should not let this golden opportunity slip away from their hands.