Re: query help - count
Date: Thu, 9 Oct 2008 18:34:25 -0700 (PDT)
Message-ID: <57df32d6-8ba6-446b-a372-815a41ff7ec0@t54g2000hsg.googlegroups.com>
Sorry, I need to change how that is set up. Ignore previous post.
it would be more like
table1
person_type
person_id
table2
person_id
appt_date
and again... There is a one to many relationship between table 1 and table 2.
where
table1.person_id=table2.person_id
I would like to get a count of unique people in table1 for each
appt_date in table2. Keep in mind that each person may have more
than
one appt in a single day.
Here's the twist though, there is a condition on table one. say person_type=2. So, say I only want to get counts of the unique number of people on each day, but they only count when person_type=2.
And, the results should be rows of:
appt_date, count
appt_date, count
How would i do that? Thanks. Received on Thu Oct 09 2008 - 20:34:25 CDT