Rolling 12 month data

Question

I use the query below to give me summary data for three
categories, for each supplier number, base on a month and year
selection :
<cfquery name="qryGet_NORS" datasource="datasource">
select suplier_number,table2.supplier_name,
sum(case when date_sent is NULL and send_flag is NULL then 1
else 0 end) as cannot_send,
sum(case when date_sent is not NULL then 1 else 0 end) as
total_send,
sum(case send_flag when 'No' then 1 else 0 end) as
total_disapproved
FROM
table1 LEFT JOIN Master_Buyer_Table ON table1.buyer_number =
Master_Buyer_Table.buyer_number
LEFT JOIN table2 ON table1.suplier_number =
table2.supplier_number
where substring(convert(varchar,date_resolved,101), 1, 2) =
'#form.selectmonth#'
and substring(convert(varchar,date_resolved,101), 7, 4) =
'#form.selectyear#'
group by suplier_number,table2.supplier_name
</cfquery>
I then use this QoQ to give me the grand totals for each
supplier number.
<cfquery dbtype="query" name="qryGet_Nors_sum">
select sum(cannot_send) as total_cannot_send,
sum(total_send) as total_total_send,
sum(total_disapproved) as total_total_disapproved
from qryGet_NORS
</cfquery>
What I need to do now is to get and output data for 12
months, starting with the input month and year. For example, if
they enter March 2008, then the above query would give me the three
totals for the period. But now, I need the totals for the next
month, April 2008, then the totals for May 2008, etc, all the way
to March 2009.
How would I modify the query to get all this information
?

Answer 1

First thing is I don't know why you do the following
where substring(convert(varchar,date_resolved,101), 1, 2) =
'#form.selectmonth#'
and substring(convert(varchar,date_resolved,101), 7, 4) =
'#form.selectyear#'
Should be
where Month(date_resolved) = #form.selectmonth#
and Year(date_resolved) = #form.selectyear#
Now for the modification
<!---
So we create a date for the first of the month selected and
return everything that is greater
--->
where date_resolved > #createDate(form.selectYear,
form.selectMonth, 1)#
<!---
To only return one year of data
creatre another date that is one year and one month greater
then return everything smaller
--->
and date_resolved < #createDate(form.selectYear+1,
form.selectMonth+1, 1)#
Ken