Question
Which data modeling technique is used to represent the
relationships between entities in a database?Solution
An Entity-Relationship Diagram (ERD) is a data modeling technique used to represent entities, their attributes, and the relationships between them in a database. It helps visualize how data is related and supports database design by defining the structure of the database. b) Data Flow Diagram (DFD) shows data flow and process interactions but not entity relationships. c) UML provides a range of diagrams, including class diagrams and use case diagrams, but ERD specifically represents database relationships. d) Class Diagram is used in object-oriented design to show classes and their relationships, not database entities. e) State Diagram represents states of an object in a system, not entity relationships.
Statements:
Only diameter is circle
Some diameter is triangle
No triangle is square
Conclusions:
I. All ci...
Statements:
Some laptops are printer.
All printer are camera.
Some camera are scanner.
Conclusions:
I. Some l...
In the questions given below, there are three statements followed by three conclusions I, II and III. You have to take the three given statements to be...
Statement:
Some lehenga are saree.
Only a few suit are dhoti.
Only a few dhoti are hanky.
All lehenga are hanky....
In the question below there are three statements followed by two conclusions I and II. You have to take the three given statements to be true even if ...
In the question below there are three statements followed by two conclusions I and II. You have to take the three given statements to be true even if t...
In the question below there are three statements followed by three conclusions I, II and III. You have to take the four given statements to be true ev...
In the following questions below are given some statements followed by some conclusions based on those statements. Taking the given statements to be t...
- In the question below some statements are given followed by three conclusions I, II and III. You have to take the given statements to be true even if they ...
Statement:
Only Metal is Bronze
Some Metal are not Gold
All Gold are Diamond
Conclusion:
...
