Re: Insert data if it is not existing

On 05/23/2018 07:59 PM, tango ward wrote:
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> On Thu, May 24, 2018 at 10:51 AM, Adrian Klaver

> Try the example I showed previously. If you do not want to use the
> the named parameters e.g %(name)s then use use %s and a tuple like:
>
> '''
> INSERT INTO my_table(%s, %s)
> WHERE NOT EXISTS(SELECT name FROM my_table WHERE name= %s)
> ''', (Scott', 23, 'Scott'))
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> Trying to coordinate with Lead Dev about adding Index On The Fly
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> --
> Adrian Klaver
> adrian(dot)klaver(at)aklaver(dot)com <mailto:adrian(dot)klaver(at)aklaver(dot)com>
>
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> Thank you Master, the name=%s solved it.

Please show the complete example that worked for completeness.

FYI, psql is your friend. When I work out queries I try them in psql
first and then move up to whatever interface I will be using. This is
usually done on a dev server so mistakes don't bring things down. If I
have to work on a production instance then I do:
BEGIN;
some_query;
ROLLBACK;

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