1.
Update factsalesproduct f inner join product p on f.product_id = p.product_id
set f.highestsales_product=p.product_sales;
SELECT * FROM `factproductsales` WHERE highestsales_product in (select max(highestsales_product)
from factproductsales)
SELECT * from factproductsales f join product p on f.product_id = p.product_id join stores s on s
.store_id=f.store_id where s.store_loc='Mumbai'
2.
update factproductsales f join product p on f.product_id = p.product_id join stores s on
s.store_id=f.store_id
set f.sales_mumbai=p.product_sales
where s.store_loc='Mumbai';
3. update factproductsales f join product p on f.product_id = p.product_id join time t on
t.time_id=f.time_id
set f.2018_sales=p.product_sales
where t.year='2018';
update factflightsales f inner join passenger p on f. Passenger_id=p.Passenger_id
set f.passenger_age_20=1
where p.Passenger_age=20
update factflightsales f inner join flight g on f.Flight_id=g.Flight_id INNER JOIN time_table t on
f.Time_id=t.Time_id set f.no_booking_2018=g.bookings
WHERE t.Year=2018
SELECT OrderID, Quantity, IF(Quantity>10, "MORE", "LESS")
FROM OrderDetails;
update factflightsales f inner join flight g on f.Flight_id=g.Flight_id INNER JOIN passenger p on
f.Passenger_id=p.Passenger_id
set IF(p.class='B',g.Fair_business*
UPDATE factproductsales f inner join product p on f.product_id=p.product_id set f.product_year=p.
product_name
Roll up:
1. select product_id,customer_id,sum(highestsales_product) totalmostsold f
rom factproductsales group by product_id,customer_id with rollup
Slice:
SELECT time_id,product_year from factproductsales where time_id=4
Dice:
SELECT time_id,product_year from factproductsales where time_id=4 or time_id=3;