What is Polymorphism?
Polymorphism is the ability of an object to take on many forms. The most common use of polymorphism in OOP occurs when a parent class reference is used to refer to a child class object.
What is the difference between inner and outer join?
An outer Join will return matching rows from two tables as well as any unmatched rows from one or both the tables, while an inner join will combine the rows from two tables and create a result set containing only such records that are present in both the tables.
What is HTML?
HTML stands for HyperText Markup Language.