owing information: New Customer Revenue e.g., new customers not present in previous year only Lost Customers New Customers
owing information: New Customer Revenue e.g., new customers not present in previous year only Lost Customers New Customers
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
A data set has 4 columns--index, CUSTOMER_EMAIL, Net Revenue, and Year.
For each year we need the following information:
- New Customer Revenue e.g., new customers not present in previous year only
- Lost Customers
- New Customers
- Total Customers Previous Year
- Total Customers Current Year
Please implement it using python.
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