Why do we need SQL?
It is a way to interact with the database. Through SQL we can perform operations like insert, delete, retrieve data records.
What is an object?
Object is a type of class. It is an instance of class with predefined properties and behaviors. For Eg: Vehicle is a class, Car is an object of class Vehilce
What is procedure oriented Programming?
The key element of this kind of programming is "function" or "procedure".. Basically you divide a major task to subtasks and write separate functions to handle each subtask. For Eg: If you need to write a program to add two nos. Then you can have three functions to perform this operation. 1) A function to take input. 2) A function to add the two given input values 3) A function to display the sum of the given input values. This is called procedure oriented programming.