Question

Q3** Write a query to create a new price list for books written by the same author. Allow the user to enter only the first 4 letters of the last name and the first letter of the first name, they should be able to get the right author. Ask the user to input a percentage and calculate the new discounted price based on the current retail price minus this percentage. Round the result to cents (two decimals). For your example query, assume the user wants to discount the price of James Patterson books by 20%.

Answer 1

We will SQL(Structured Query Language) designed for this specific problem to manage the data base for the library management system.This querry SQL based system will ask the user to tell the first name and this SQL based system will his full name.