Question

I am here to write a SQL statement for finding the weekly summary from a table. I had a table with following fields:

UIN, Date, Staff, work_hours

Now I would like to gather information how many hours has a staff worked in one week.

Answer 1

It’s hard to tell from your question, but if you’re looking for the total hours in one week by each employee, try the following:

SELECT Staff, SUM(work_hours)
FROM YourTable
WHERE Date BETWEEN week_start_day AND week_end_day
GROUP BY Staff

Otherwise, if you’re looking for a full report, summarized by week, you can try the following, which will give you each staff’s weekly hours, aggregated by week:

SELECT YEAR(Date), WEEK(Date), Staff, SUM(work_hours)
FROM YourTable
GROUP BY YEAR(Date), WEEK(Date), Staff
ORDER BY YEAR(Date), WEEK(Date)