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add sql for data analysis - weekender crash course
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‎SQL for Data Analysis - Weekender Crash Course/sakila-analysis.sql

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/***************************************************/
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/* SQL for Data Analysis - Weekender Crash Course */
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/***************************************************/
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/*Before you run these queries, make sure to create Sakila DB and import the related data first*/
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/* Email Campaigns for customers of Store 2
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First, Last name and Email address of customers from Store 2*/
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SELECT first_name, last_name,email
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FROM customer
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WHERE store_id = 2;
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/* movie with rental rate of 0.99$*/
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SELECT COUNT(*) FROM film
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WHERE rental_rate = 0.99;
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/* we want to see rental rate and how many movies are in each rental rate categories*/
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SELECT rental_rate, COUNT(*) AS total_number_of_movies
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FROM film
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GROUP BY rental_rate;
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SELECT rental_rate, COUNT(*) AS total_number_of_movies
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FROM film
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GROUP BY 1;
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/*Which rating do we have the most films in?*/
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SELECT rating,COUNT(*) AS total_number_of_movies
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FROM film
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GROUP BY 1;
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/*Which rating is most prevalant in each store?*/
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SELECT s.store_id, f.rating, COUNT(f.rating) AS total_number_of_films
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FROM store s
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JOIN inventory i ON s.store_id = i.store_id
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JOIN film f ON f.film_id = i.film_id
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GROUP BY 1,2;
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/*We want to mail the customers about the upcoming promotion*/
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SELECT c.customer_id, c.first_name, c.last_name, a.address
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FROM customer c
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JOIN address a ON c.address_id = a.address_id;
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/* List of films by Film Name, Category, Language*/
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SELECT f.title,c.name,l.name
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FROM film f
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JOIN film_category fc ON fc.film_id = f.film_id
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JOIN category c ON fc.category_id = c.category_id
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JOIN language l ON l.language_id = f.language_id;
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/* How many times each movie has been rented out? */
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SELECT i.film_id, f.title, COUNT(i.film_id) AS total_number_of_rental_times
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FROM rental r
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JOIN inventory i ON r.inventory_id = i.inventory_id
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JOIN film f ON f.film_id = i.film_id
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GROUP BY i.film_id
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ORDER BY 3 DESC;
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/*Revenue per Movie */
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SELECT i.film_id, f.title, COUNT(i.film_id) AS total_number_of_rental_times, f.rental_rate, COUNT(i.film_id)*f.rental_rate AS revenue_per_movie
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FROM rental r
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JOIN inventory i ON r.inventory_id = i.inventory_id
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JOIN film f ON f.film_id = i.film_id
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GROUP BY i.film_id
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ORDER BY 5 DESC;
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/* Most Spending Customer so that we can send him/her rewards or debate points*/
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SELECT c.customer_id, SUM(p.amount) AS "Total Spending"
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FROM customer c
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JOIN payment p ON c.customer_id = p.customer_id
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GROUP BY 1
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ORDER BY 2 DESC;
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/* What Store has historically brought the most revenue */
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SELECT s.store_id, SUM(p.amount) AS "Total Spending"
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FROM store s
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JOIN inventory i ON i.store_id = s.store_id
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JOIN rental r ON r.inventory_id = i.inventory_id
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JOIN payment p ON p.rental_id = r.rental_id
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GROUP BY 1
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ORDER BY 2 DESC;
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/*How many rentals we have for each month*/
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SELECT left(rental_date,7) AS "Month", COUNT(*)
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FROM rental
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GROUP BY 1;
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/* Rentals per Month (such Jan => How much, etc)*/
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SELECT date_format(rental_date,"%M") AS "Month", COUNT(*)
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FROM rental
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GROUP BY 1
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ORDER BY 2 DESC;
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/* Which date first movie was rented out ? */
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SELECT MIN(rental_date)
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FROM rental;
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/* Which date last movie was rented out ? */
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SELECT MAX(rental_date)
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FROM rental;
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/* For each movie, when was the first time and last time it was rented out? */
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SELECT f.title AS "Film Title", MIN(r.rental_date) AS "First Rented Date", MAX(r.rental_date) AS "Last Rented Date"
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FROM film f
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JOIN inventory i ON f.film_id = i.film_id
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JOIN rental r ON r.inventory_id = i.inventory_id
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GROUP BY 1;
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/* Last Rental Date of every customer */
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SELECT c.customer_id, c.first_name, c.last_name, MAX(r.rental_date) AS "Last Rental Date"
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FROM customer c
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JOIN rental r ON r.customer_id = c.customer_id
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GROUP BY 1;
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/* Revenue Per Month */
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SELECT LEFT(payment_date,7) AS "Month", SUM(amount) AS "Revenue Per Month"
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FROM payment
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GROUP BY 1;
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/* How many distint Renters per month*/
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SELECT LEFT(rental_date,7) AS "Month",
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COUNT(DISTINCT(rental_id)) AS "Total Rentals",
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COUNT(DISTINCT(customer_id)) AS "Number Of Unique Renter",
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COUNT(DISTINCT(rental_id))/COUNT(DISTINCT(customer_id)) AS "Average Rent Per Renter"
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FROM rental
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GROUP BY 1;
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/*Number of Distinct Film Rented Each Month */
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SELECT i.film_id, f.title, LEFT(r.rental_date,7) AS "Month", COUNT(i.film_id) AS "Total Number Of Rental Times"
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FROM rental r
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JOIN inventory i ON r.inventory_id = i.inventory_id
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JOIN film f ON f.film_id = i.film_id
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GROUP BY i.film_id, LEFT(r.rental_date,7)
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ORDER BY 1, 2, 3;
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/* Number of Rentals in Comedy , Sports and Family */
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SELECT c.name, COUNT(c.name) AS "Number of Rentals"
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FROM film f
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JOIN film_category fc ON fc.film_id = f.film_id
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JOIN category c ON c.category_id = fc.category_id
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JOIN inventory i ON f.film_id = i.film_id
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JOIN rental r ON r.inventory_id = i.inventory_id
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WHERE c.name IN ("Comedy", "Sports", "Family")
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GROUP BY 1;
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/*Users who have been rented at least 3 times*/
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SELECT c.customer_id, CONCAT(c.first_name, " ", c.last_name) AS "Customer Name", COUNT(c.customer_id) AS "Total Rentals"
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FROM customer c
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JOIN rental r ON c.customer_id = r.customer_id
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GROUP BY 1
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HAVING COUNT(c.customer_id) >= 3
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ORDER BY 1;
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/*How much revenue has one single store made over PG13 and R rated films*/
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SELECT s.store_id, f.rating, SUM(p.amount) AS "Total Revenue"
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FROM store s
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JOIN inventory i ON i.store_id = s.store_id
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JOIN rental r ON r.inventory_id = i.inventory_id
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JOIN payment p ON p.rental_id = r.rental_id
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JOIN film f ON f.film_id = i.film_id
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WHERE f.rating IN ("PG-13", "R")
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GROUP BY 1,2;
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/*******************************************************/
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/* Active User where active = 1*/
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DROP TEMPORARY TABLE IF EXISTS tbl_active_users;
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CREATE TEMPORARY TABLE tbl_active_users(
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SELECT c.*, a.phone
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FROM customer c
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JOIN address a ON a.address_id = c.address_id
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WHERE c.active = 1);
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/* Reward Users : who has rented at least 30 times*/
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DROP TEMPORARY TABLE IF EXISTS tbl_rewards_user;
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CREATE TEMPORARY TABLE tbl_rewards_user(
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SELECT r.customer_id, COUNT(r.customer_id) AS total_rents, max(r.rental_date) AS last_rental_date
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FROM rental r
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GROUP BY 1
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HAVING COUNT(r.customer_id) >= 30);
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/* Reward Users who are also active */
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SELECT au.customer_id, au.first_name, au.last_name, au.email
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FROM tbl_rewards_user ru
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JOIN tbl_active_users au ON au.customer_id = ru.customer_id;
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/* All Rewards Users with Phone */
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SELECT ru.customer_id, c.email, au.phone
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FROM tbl_rewards_user ru
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LEFT JOIN tbl_active_users au ON au.customer_id = ru.customer_id
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JOIN customer c ON c.customer_id = ru.customer_id;

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