Re: Reset sequence to current maximum value of rows

David G. Johnston <david.g.johnston@gmail.com>

From: "David G. Johnston" <david.g.johnston@gmail.com>
To: Rich Shepard <rshepard@appl-ecosys.com>
Cc: pgsql-general@lists.postgresql.org
Date: 2024-06-13T19:35:01Z
Lists: pgsql-general
On Thu, Jun 13, 2024 at 11:24 AM Rich Shepard <rshepard@appl-ecosys.com>
wrote:

> On Thu, 13 Jun 2024, David G. Johnston wrote:
>
> > You need to show your work here.  As your PK is a number it cannot have a
> > company name as a value and so this doesn't make sense.
>
> insert into companies (company_nbr,company_name,industry,status) values
> (DEFAULT,'new company name','Industry','Opportunity')
>
> With DEFAULT as the company_nbr why can't the company_name not have a
> value?
>

Because you specified company_name in the column listing for the things you
are inserting values for.  So in column position 2 you must have a value
than can be inserted into the company_name column.  It is utterly
immaterial how you specified the value for column position 1.


> > If you use the default when inserting the next value in the sequence is
> > used.
>
> Yes, that's the theory. It didn't work for me and why it didn't is what I
> want to understand.
>
>
We can't help you understand if you don't show a complete working example
and ask a question in relation to that example.  I suggest you start from
scratch, this time using scripts, so that your work is recorded and
replayable.

David J.