Question

I have a Datatable with several hundred rows for this year in it. (MS SqlServer 2k8)

I would like to split this data set out into customer enquiries / Month.

What I have so far is;

Select count(id) As Customers, DatePart(month, enquiryDate) as MonthTotal, productCode From customerEnquiries
where enquiryDate > '2012-01-01 00:00:00'
group by productCode, enquiryDate

But this then produces a row for each data item. (Whereas I want a row per month for each data item.)

So how do I change the above query, so that instead of getting

1 1 10
1 1 10
1 1 11
1 2 10
1 2 10

…

I get

2 1 10    <-- 2 enquiries for product code 10 in month 1
1 1 11    <-- 1 enquiries for product code 11 in month 1
2 2 10    <-- 2 enquiries for product code 10 in month 2
etc

And as a bonus question, is there an easy way of naming each month so the output is Jan, Feb, March instead of 1,2,3 in the month column?

Answer 1

Try this

Select count(id) As Customers, DatePart(month, enquiryDate) as MonthTotal, productCode From customerEnquiries
where enquiryDate > '2012-01-01 00:00:00'
group by productCode, DatePart(month, enquiryDate)

This may help you.