COUNT Data from the past 7 days, but have it so it shows the result for each day in those 7 days

Question

I don't really know how to explain it, but I have a Morris.JS chart in my Web appliication and I want to have the ability to get data from the last 7 days and put it into the chart.

I don't know if using DATE formats work in a Query nor do I know how to do it, so I'm here asking for assistance on it.

My columns are x as the value and datetime as the datetime and I don't know how I would get the value of X for each day for 7 days.

Hopefully this makes sense?

Answer 1

选择，添加日期，按日期分组。

 SELECT DATE(DATE_ADD(my_date, - INTERVAL 7 DAY)), my_data, other_data from TABLE_NAMER group by  DATE(DATE_ADD(my_date, - INTERVAL 7 DAY))