Question

I have a table revenue with following fields

+----+-----------+-------------+---------------+
| id | member_id | amount_paid | datetime_paid |
+----+-----------+-------------+---------------+

I want to run a query to find the top 10 maximum revenue days. What would be the fastest way to achieve this? The table has a lot of data.

Regards,

Answer 1

First you need to group the results by the day the payment was made. This can be done by selecting DATE(datetime_paid) as payday, then grouping by payday. To get the total, select SUM(amount_paid) as total. Finally, to get the top 10, order by total desc and limit 10.

Your final query should look like:

SELECT DATE(`datetime_paid`) AS `payday`, SUM(`amount_paid`) AS `total`
FROM `table_name_here`
GROUP BY `payday`
ORDER BY `total` DESC
LIMIT 10

You may need to change that ORDER BY line to ORDER BY SUM(amount_paid) DESC, I can’t remember if field aliases are allowed in ordering.