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Date: Thu, 13 Jun 2024 15:01:23 -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>
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On 6/13/24 12:57, Rich Shepard wrote:
> On Thu, 13 Jun 2024, David G. Johnston wrote:
> 
>> 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.
> 
>> 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,
> 
> INSERT into companies (company_nbr,company_name,industry,status) VALUES
> (DEFAULT,'A new company name', 'Manufacturing',DEFAULT);
> 
> I always write scrips for SQL, R, GRASS, Python, bash. Above is a redacted
> version of the single name I tried adding to the companies table.
> 
> Yesterday, before learning to use DEFAULT for the company_nbr PK I entered
> all rows using company_nbr 2342-2391. This morning, after running the

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?


> single-line INSERT command company numbers from 2341-2392 all had 'A new
> company name' as the company_name.
> 
> HTH,
> 
> Rich
> 
> 

-- 
Adrian Klaver
adrian.klaver@aklaver.com