Retrieve rows grouped by hour with MySQL

Question

I have a table containing access logs. I want to know how many accesses to resource_id \'123\' occured in each hour in a 24 hour day.

My first thought for retrieving thi

Answer 1

You can use the function HOUR to get the hour out of the time. Then you should be able to group by that.

Answer 2

SELECT HOUR(MyDatetimeColumn) AS h, COUNT(*)
FROM MyTable
GROUP BY h;