Re: Reset sequence to current maximum value of rows

On 6/13/24 15:13, Rich Shepard wrote:
> On Thu, 13 Jun 2024, Adrian Klaver wrote:
>
>> Not with:
>>
>> Table "public.companies"
>>
>>     [...]
>> Indexes:
>>    "organizations_pkey" PRIMARY KEY, btree (company_nbr)
>>
>> That would throw duplicate key errors.
>>
>> Are you sure that you did not do this on the contacts table as the
>> company FK back to companies?
>
> Adrian,
>
> Yes, I'm sure. Early yesterday I did get duplicate key errors. That's
> when I
> looked on stackexchange to learn how to reset the sequence's max value to
> the value of the number of rows in the table. Not only did my attempt to
> add
> a single new company to the companies table change all company names in
> that
> one industry to the new name, but I just discovered that it changed all
> rows
> in that column to the new company name:

BEGIN;

<Run query>

<Check query results>

Then either

ROLLBACK;
COMMIT;

depending on the result of check.

>
> Regards,
>
> Rich
>
>

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com