Re: Automatic deletion of orphaned rows

On Wed, Jan 22, 2025 at 9:37 AM David G. Johnston <
david(dot)g(dot)johnston(at)gmail(dot)com> wrote:

> On Wednesday, January 22, 2025, Ron Johnson <ronljohnsonjr(at)gmail(dot)com>
> wrote:
>>
>>
>>> I therefore propose a feature, to be able to specify in a table schema
>>> that a row should be deleted if orphaned.
>>
>>
>> For one thing, rows *can't* be orphaned if there's a foreign key
>> reference.
>>
>
> The description was correct even though using probably imprecise
> terminology. The basic goal is to delete childless parents.
>

That's kinda what I thought he wrote, but it's so far beyond "normal" that
I dismissed the possibility. Parents are allowed to not have
children, after all.

Is there *ANY* DBMS with a built-in reverse FK "parents must have children"
feature?

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