Re: Query help

On Sat, Jan 26, 2019 at 6:30 PM Ron <ronljohnsonjr(at)gmail(dot)com> wrote:

> On 1/26/19 5:04 PM, Chuck Martin wrote:
>
> I'm having trouble formulating a query. This is a simplified version of
> the tables:
>
> ombcase
> ------------
> case_pkey integer, primary key
> casename varchar
> insdatetime timestamp w/o time zone
> status_fkey integer, foreign key
>
> status
> --------
> status_pkey integer, primary key
> statusid varchar
>
> statuschange
> --------
> statuschange_pkey integer, primary key
> insdatetime timestamp w/o time zone
> ombcase_fkey integer, foreign key
> oldstatus_fkey integer, foreign key
> newstatus_fkey integer, foreign key
> active integer, not nullable
>
> The idea should be obvious, but to explain, insdatetime is set when a new
> record is created in any table. All records in ombcase have a foreign key
> to status that can't be null. When status changes, a record is created in
> statuschange recording the old and new status keys, and the time (etc).
>
> The goal is to find records in ombcase that have not had a status change
> in xx days. If the status has not changed, there will be no statuschange
> record.
>
>
> Does statuschange.*ins*datetime record when an ombcase record was first
> inserted, or when the status_fkey associated with ombcase.case_pkey was
> updated?
>

No, it only creates a statuschange record when the status is first changed,
not when the ombcase record is created.

>
>
> And why not add upddatetime to ombcase? That would solve all your
> problems.
>

I do record the time of the last update, but that could reflect a change of
any column (most I didn’t list).

>
>
> --
> Angular momentum makes the world go 'round.
>
--

Charles L. Martin
Martin Jones & Piemonte
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