From 8d4e41618b75d12c09714aa84516f98077e06243 Mon Sep 17 00:00:00 2001
From: andy-casagrande <163665556+andy-casagrande@users.noreply.github.com>
Date: Mon, 17 Jun 2024 13:10:30 +0100
Subject: [PATCH] Add files via upload

---
 Lab SQL Self and cross join.sql | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 Lab SQL Self and cross join.sql

diff --git a/Lab SQL Self and cross join.sql b/Lab SQL Self and cross join.sql
new file mode 100644
index 0000000..dd8c44b
--- /dev/null
+++ b/Lab SQL Self and cross join.sql	
@@ -0,0 +1,20 @@
+-- 1. Get all pairs of actors that worked together.
+SELECT FA1.ACTOR_ID AS ACTOR_ID_FIRST, FA2.ACTOR_ID AS ACTOR_ID_SECOND, FA1.FILM_ID
+FROM SAKILA.FILM_ACTOR FA1
+INNER JOIN SAKILA.FILM_ACTOR FA2 
+ON FA1.FILM_ID = FA2.FILM_ID
+AND FA1.ACTOR_ID <> FA2.ACTOR_ID;
+
+-- Get all pairs of customers that have rented the same film more than 3 times.
+SELECT R1.CUSTOMER_ID AS CUSTOMER1, R2.CUSTOMER_ID AS CUSTOMER2, COUNT(*) AS RENTAL_COUNT
+FROM SAKILA.RENTAL R1
+JOIN SAKILA.RENTAL R2 
+ON R1.INVENTORY_ID = R2.INVENTORY_ID
+AND R1.CUSTOMER_ID <> R2.CUSTOMER_ID
+GROUP BY CUSTOMER1, CUSTOMER2 
+HAVING COUNT(*) > 3;
+
+-- Get all possible pairs of actors and films.
+SELECT Film_actor.ACTOR_ID, Film.FILM_ID, Film.TITLE
+FROM SAKILA.FILM_ACTOR Film_actor
+CROSS JOIN SAKILA.FILM Film;
\ No newline at end of file