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ph1-solutions.sql

@@ -4,3 +4,51 @@
 USE sakila;
 
 -- Your solutions...
+--1
+select first_name, last_name from actor where first_name = 'Scarlett';
+
+--2
+select first_name, last_name from actor where last_name = 'Johansson';
+
+--3
+select count(distinct(last_name)) distinct_last_name from actor;
+
+--4
+select last_name, count(*) from actor
+group by last_name having count(*) = 1;
+
+--5
+select last_name, count(*) from actor
+group by last_name having count(*) > 1;
+
+--6
+select a.first_name, a.last_name, count(fa.film_id) film_max
+from film_actor fa join actor a on fa.actor_id = a.actor_id
+group by fa.actor_id order by film_max desc limit 1;
+
+--7
+select f.title, i.inventory_id, i.store_id from inventory i
+right join film f on i.film_id = f.film_id
+where f.title = 'Academy Dinosaur' and i.store_id = 1;
+
+--8
+select * from customer where first_name = 'Mary' and last_name = 'Smith';
+select film_id, title from film where title = 'Academy Dinosaur';
+select staff_id, store_id from staff where first_name = 'Mike' and last_name = 'Hillyer';
+insert into rental (customer_id, inventory_id, staff_id, rental_date) values (1, 1, 1, now());
+
+--9
+select rental_date, rental_date + interval (select rental_duration from film where film_id = 1) day
+as due_date from rental where rental_id = (select rental_id from rental order by rental_id desc limit 1);
+
+--10
+select avg(length) as average_run_time from film_list;
+
+--11
+select category, avg(length) as average_run_time
+from film_list group by category;
+
+--12
+--The last_update column is common between the two tables, but its not likely that
+--both the film_id (the other matching column) and the last_update column will both
+--match between the two tables because date time is very specific.

ph2-solutions.sql

@@ -4,3 +4,153 @@
 USE sakila;
 
 -- Your solutions...
+--1a
+select first_name, last_name from actor;
+
+--1b
+select concat(upper(first_name), ' ',upper(last_name)) 'Actor Name' from actor;
+
+--2a
+select actor_id, first_name, last_name from actor
+where first_name = 'Joe';
+
+--2b
+select first_name, last_name from actor
+where last_name like '%gen%';
+
+--2c
+select last_name, first_name from actor
+where last_name like '%li%' order by last_name, first_name;
+
+--2d
+select country_id, country from country
+where country in ('Afghanistan','Bangladesh', 'China');
+
+--3a
+alter table actor add middle_name varchar(45) after first_name;
+
+--3b
+alter table actor modify column middle_name blob;
+
+--3c
+alter table actor drop column middle_name;
+
+--4a
+select last_name, count(*)
+from actor group by last_name
+order by count(*) desc;
+
+--4b
+select last_name, count(*)
+from actor group by last_name
+having count(*) > 1 order by count(*) desc;
+
+--4c
+update actor set first_name = 'HARPO'
+where last_name = 'Williams' and first_name = 'Groucho';
+
+--4d
+update actor set first_name = if(first_name = 'HARPO', 'GROUCHO', 'MUCHO GROUCHO')
+where last_name = 'Williams' and first_name = 'Harpo';
+
+--5a
+show create table address;
+
+--6a
+select concat(s.first_name, ' ', s.last_name), a.address
+from staff s
+left join address a on s.address_id = a.address_id;
+
+--6b
+select concat(s.first_name, ' ', s.last_name), count(*) transactions
+from payment p right join staff s on p.staff_id = s.staff_id
+where p.payment_date like '%2005-08%' group by p.staff_id;
+
+--6c
+select f.title, count(*) num_actors
+from film_actor fa inner join film f on fa.film_id = f.film_id
+group by fa.film_id order by count(*) desc;
+
+--6d
+select film_id, title from film where title = 'Hunchback Impossible';
+select film_id, count(*) copies from inventory where film_id = 439;
+--or
+select f.title, count(*) copies
+from inventory i join film f on i.film_id = f.film_id
+where f.title = 'Hunchback Impossible';
+
+--6e
+select c.last_name, c.first_name, sum(p.amount) total_payment
+from payment p join customer c on p.customer_id = c.customer_id
+group by c.last_name, c.first_name order by c.last_name;
+
+--7a
+select title from film
+where (title like '\K%' OR title like '\Q%')
+AND language_id = (select language_id from language where name = 'English');
+
+--7b
+select concat(a.first_name, ' ', a.last_name) actor from film_actor fa
+join actor a on fa.actor_id = a.actor_id
+where fa.film_id = (select f.film_id from film f where f.title = 'Alone Trip');
+
+--7c
+select c.first_name, c.last_name, c.email
+from customer c where c.customer_id in
+(select c.customer_id from customer c
+join customer_list cl on c.customer_id = cl.ID
+where cl.country = 'Canada');
+
+--7d
+select f.title from film f
+join film_category fc on f.film_id = fc.film_id
+where f.film_id in
+(select fc.film_id from film_category fc
+left join category c on fc.category_id = c.category_id
+where c.name = 'family');
+
+--7e
+select f.title, x.num_rent
+from (select i.film_id id, count(*) num_rent from rental r
+left join inventory i on r.inventory_id = i.inventory_id group by i.film_id) x
+left join film f on x.id = f.film_id order by x.num_rent desc;
+
+--7f
+select store, total_sales from sales_by_store;
+--or
+select i.store_id, sum(p.amount) business_in_dollars from inventory i
+join rental r on i.inventory_id = r.inventory_id
+join payment p on r.rental_id = p.rental_id group by i.store_id;
+
+--7g
+select s.store_id, c.city, ct.country from store s
+join address a on s.address_id = a.address_id
+join city c on a.city_id = c.city_id
+join country ct on c.country_id = ct.country_id
+
+--7h
+select category, total_sales from sales_by_film_category
+order by total_sales desc;
+
+--7g
+select cat.name, sum(p.amount) revenue from category cat
+join film_category fc on cat.category_id = fc.category_id
+join inventory i on fc.film_id = i.film_id
+join rental r on i.inventory_id = r.inventory_id
+join payment p on r.rental_id = p.rental_id
+group by cat.category_id order by revenue desc limit 5;
+
+--8a
+create view top_five_genres_rev as
+select cat.name, sum(p.amount) revenue from category cat
+join film_category fc on cat.category_id = fc.category_id
+join inventory i on fc.film_id = i.film_id
+join rental r on i.inventory_id = r.inventory_id
+join payment p on r.rental_id = p.rental_id
+group by cat.category_id order by revenue desc limit 5;
+
+--8b
+select * from top_five_genres_rev;
+
+ --8c
+ drop view top_five_genres_rev;