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From: Rich Shepard <[email protected]>
To: [email protected]
Subject: Re: Gaps in PK sequence numbers
Date: Mon, 10 Jun 2024 18:13:55 -0700 (PDT)
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAKFQuwboV8qvZrGWb+TOsNVYXzf=j=gE3fYMYFoNg2JT2_0YqA@mail.gmail.com>
References: <[email protected]>
	<CAKFQuwboV8qvZrGWb+TOsNVYXzf=j=gE3fYMYFoNg2JT2_0YqA@mail.gmail.com>

On Mon, 10 Jun 2024, David G. Johnston wrote:

> For efficiency the only thing used to determine the next value of a
> sequence is the stored value of the last sequence value issued. Where that
> value may have been used, in a table as a PK or some other purpose, does
> not enter into it. Using a sequence as a default does indeed become
> problematic if you don't use it exclusively. If you do use it exclusively
> usually you just set the last value to be the maximum needed and use it
> going forward. The numbers from deleted rows simply remain missing in the
> table.

David,

Thanks for the explanation. I had entered PKs without using the sequence.

Regards,

Rich

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