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Date: Thu, 13 Jun 2024 15:24:51 -0700
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Subject: Re: Reset sequence to current maximum value of rows
To: Rich Shepard <rshepard@appl-ecosys.com>,
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From: Adrian Klaver <adrian.klaver@aklaver.com>
In-Reply-To: <b6b331ff-913d-d5d8-905-aba54e90c99f@appl-ecosys.com>
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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.klaver@aklaver.com