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Victor Cotto
1,770 Pointshttps://teamtreehouse.com/library/reporting-with-sql/date-and-time-functions/calculating-dates-2
I'm not sure why my code isn't working to calculate the number of orders made yesterday.
https://teamtreehouse.com/library/reporting-with-sql/date-and-time-functions/calculating-dates-2
Challenge Task 1 of 1 In an ecommerce database there's an orders table with the columns id, product_id, user_id, address_id, ordered_on, status and cost.
Count the total number of orders that have the status of shipped and were ordered yesterday. Alias it to shipped_yesterday.
SELECT COUNT(*) AS shipped_yesterday FROM orders WHERE status = "shipped" AND DATE("now", "-1 day")
1 Answer
Jennifer Nordell
Treehouse TeacherHi there! You're doing great, but you're missing a small part. What you're returning (I believe) are all orders that are marked as "shipped" as of yesterday, but not necessarily all orders that are marked as "shipped" and ordered yesterday. We need the ordered_on to be involved here.
Here's how I did it:
SELECT COUNT(*) AS shipped_yesterday FROM orders WHERE status = "shipped" and ordered_on = DATE("now", "-1 day");
This will return all orders that were ordered yesterday and have already been shipped. Hope this helps!
