Show their content after: 1) Update student set sid = 9999 where sid = 5275 2) Update student set sid = 8888 where sid = 3842 Assume that Student (sid: int, name: varchar(20), login: varchar(20), age: int, gpa: float, Primary key (sid)) Enrollment(cid: varchar(7), grade: varchar(2), stuid: int, primary key (stuid, cid), foreign key (stuid) references student on update cascade)

q4- Choose all that apply

Refer to the film and inventory tables of the Sakila database. The tables in this lab have the same columns and data types but fewer rows. Write a query that lists the titles of films with the fewest rows in the inventory table. This query requires a subquery that computes the minimum of counts by film_id: SELECT MIN(count_film_id) FROM ( SELECT COUNT(film_id) AS count_film_id FROM inventory GROUP BY film_id ) AS temp_table; This subquery is provided in the template.

Task B.  Import the data shown in pictures into the two tables created.

In OES4 database, we can verify the values stored in subtotal field by using the following 1: col gross_sales for 99999999 col subtotal for 99999999 select o.order_no,sum(qty*Unit_cost) Gross_Sales, sum(o.subtotal) subtotal from orders o, orderline ol, product p where o.order_no=ol.order_no and ol.product_no=p.product_no group by o.order_no; II: col gross_sales for 99999999 col subtotal for 99999999 select o.order_no,sum(qty*Unit_cost) Gross_Sales, sum(o.subtotal) subtotal from orders o, orderline ol, product p where o.order_no=ol.order_no and ol.product_no=p.product_no group by o.order_no; I & II: are correct I & II: are not correct | || I & II: are not correct I & II: are correct

• Write a simple stored function that Takes a gender as an input ● Find the staff whose gender matches the input Return the results Write a simple stored procedure that Takes a gender as an input Find the staff whose gender matches the input • Print the results

Composite main keys have prospective keys.

Task 2: The Car Maintenance team also wants to store the actual maintenance operations in the database. The team wants to start with a table to store CAR_ID (CHAR(5)), MAINTENANCE_TYPE_ID (CHAR(5)) and MAINTENANCE_DUE (DATE) date for the operation. Create a new table named MAINTENANCES. The PRIMARY_KEY should be the combination of the three fields. The CAR_ID and MAINTENACNE_TYPE_ID should be foreign keys to their original tables. Cascade update and cascade delete the foreign keys.   Answer in MYSQL please

Create table statements (file name must be: 1_create_table.txt). Make sure you specify primary keys and foreign keys. Specifying “not null” constraint is optional. Specifying “on delete action” and “on update action” are optional.

Create a view vLab3_xxx in the  class database list the staff who have the highest salary in each of the branch city. You will need both Staff and Branch table. The output header should be (city, name, salary) where the name is "fname lname".