What is Cardinality in Databases? What is the difference between one-to-one and one-to-many cardinality?What is Low, Medium and high cardinality?
Difference between Primary Key and Foreign Key?
What is primary key in a table?
What is the purpose of foreign key?
Give an example of primary and foreign key,
What is the best description of an “interface”.
What does the interfaces exhibit?
What is meant by class inheritance?
Types of Inheritance?
What are Pros and Cons of inheritance.
what is third form of normalization?
What we achieve after 3rd normal form?
How to spot tables which are not in third normal form
what is polymorphism in oop?
Which methods are used in polymorphism?
Give a real world example of polymorphism
What is normalization in database?
Give an example of each type of normalization.
How do you achieve normalization in your project
What is an Entity Relationship Diagram (ERD)?
Show your ERD Diagram?
What do you think is there any mistake in ERD?
Why ERD is necessary?
What are the components of ERD
What is the difference between class diagram and database diagram?
