Write a Django based web server to parse a user request (POST), and write it to a CSV file.

Integrate SQL with Python by importing the MySQL module.

Write a SQL query to order the (student ID, marks) table in descending order of the marks.

Find the total number of customers from each country in the table (customer ID, customer name, country) using group by.

Find the min, max, sum, and average of the marks in a student marks table.