> On Aug 19, 2021, at 10:31 AM, Rich Shepard <rshepard@appl-ecosys.com> wrote:
>
> On Thu, 19 Aug 2021, Rob Sargent wrote:
>
>> Did you try David J’s suggestion? or maybe
>
> Rob,
>
> Yes.
>
>> select person_nbr, max(next_contact) group by person_nbr where
>> next_contact < now();
>
>> A table with person_nbr (pk), next_contact would make this much easier.
>> Seems to me a person can only have one next-contact? (as opposed to all
>> future_contact)
>
> The peoples table has person_nbr as the PK. The contacts table has multiple
> rows for all contacts with that person_nbr. The contacts table has a
> multicolum PK: person_nbr and contact_date as there is only one contact on
> any given day for that person.
>
> HTH,
>
> Rich
>
Yeah, but my quibble is the the table you described up-thread. Your contact table contains next_contact? I think that
columnshould be normalized out.
Using David’s trick as a CTE should be descent starting point for you ultimate result?
>
>