On Thu, Jun 21, 2018 at 10:31 AM, Ken Dibble <[email protected]> wrote: > Hi Folks, > > I have to admit that I've never been able to figure out how to get MAX() to > work correctly in queries. > > Given the following tables (simplified): > > Consumers > > PK > 1 > 2 > 3 > > Status > > PK ConFK Date Type > 1 1 {^2018/1/15} Pending > 2 1 {^2018/4/15} Approved > 3 2 {^2018/6/1} Closed > 4 2 {^2018/4/15} Approved > 5 3 {^2017/11/22} Pending > 6 3 {^2018/2/3} Approved > 7 3 {^2018/3/12} Suspended > 8 3 {^2018/5/11} Approved > > Hours > > PK ConFK Date AppHours > 1 2 {^2017/7/3} 10 > 2 2 {^2018/3/12} 14 > 3 3 {^2018/4/1/} 20 > 4 3 {^2018/5/1} 12 > > Query: How many Consumers have a most recent Status of Approved, and what is > the sum of those Consumers' Approved Hours? > > Answer: 2 Approved Consumers, having a total of 12 Hours.
Not at a machine with VFP, so I can't test this, but it looks good in Google Mail :) SELECT Consumer.*, Status.*, SUM(Hours.AppHours) AS TotalHours FROM Consumer JOIN Status on Consumer.ConPK=Status.ConFK JOIN Hours on Consumer.ConPK=Hours.ConFK WHERE Status.Date = (SELECT MAX(Stat2.Date) FROM Status Stat2 WHERE Stat2.ConFK = Consumer.ConPK) AND Status.Type = "Approved" -- Ted Roche Ted Roche & Associates, LLC http://www.tedroche.com _______________________________________________ Post Messages to: [email protected] Subscription Maintenance: http://mail.leafe.com/mailman/listinfo/profox OT-free version of this list: http://mail.leafe.com/mailman/listinfo/profoxtech Searchable Archive: http://leafe.com/archives/search/profox This message: http://leafe.com/archives/byMID/profox/CACW6n4sOg5KjDvcTX5TRU7C2A3-XuP1yms=8bfybdmaiaef...@mail.gmail.com ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.
