diff --git a/Lab SQL Self and cross join.sql b/Lab SQL Self and cross join.sql
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+++ b/Lab SQL Self and cross join.sql	
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+-- 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;
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