Re: Selecting table row with latest date

From: Rich Shepard <rshepard(at)appl-ecosys(dot)com>
To: pgsql-general(at)lists(dot)postgresql(dot)org
Subject: Re: Selecting table row with latest date
Date: 2021-08-19 16:06:17
Message-ID: alpine.LNX.2.20.2108190903050.15165@salmo.appl-ecosys.com
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On Thu, 19 Aug 2021, Adrian Klaver wrote:

> Alright now I am confused. You keep referring to contact_date, yet the
> query is referring to next_contact. Are they the same thing, different
> things or other?

Adrian,

The table has 5 columns: person_nbr, contact_date, contact_type, notes, and
next_contact.

I want the query to find all person_nbr whose most recent contact_date has a
next_contact date <= today. I don't need prior contact_dates and their
next_contact dates because some go back several years. I want to know those
I need to contact again based on our most recent contact.

HTH,

Rich

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