Please use these relations to solve the above problems. Thanks!

1. Union ([) 2. Intersection (\) 3. Difference () 4. Product () 5. Projection () 6. Selection () 7. Rename () 8. Natural Joins (on) 9. Theta Joins ()

OwnerId PetId Owner = COCOAN ONACO Id Name Species Age Id Name Age 1 Bones Cat 2 Big G Bear 1 Pete 12 Pets = 3 Fluffy Bunny People = 2 Alice 4 Bones Dog 3 Juan 5 Goldie Fish 4 Dana 6 Fido Dog 1. (34 points) Write a query which gives the relation below. PetName Owner Name Fido Pete Big G Juan Bones Dana Bones Juan Goldie Pete Fluffy Alice 2. (33 points) Write a query which uses set intersection to give the names of all pet owners who own both a dog and a cat. (The query must always work, even if records are inserted or removed.) 3. (33 points) Write a query which has the same result as the query above but does not use set inter