Re: Insert data if it is not existing

From: tango ward <tangoward15(at)gmail(dot)com>
To: "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>
Cc: Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>, "pgsql-generallists(dot)postgresql(dot)org" <pgsql-general(at)lists(dot)postgresql(dot)org>
Subject: Re: Insert data if it is not existing
Date: 2018-05-24 03:04:09
Message-ID: CAA6wQLKER=WpBjpa+6Uzym0KwVFSSZ3LTzdcmKDy3Vh4LCDu6w@mail.gmail.com
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On Thu, May 24, 2018 at 10:55 AM, David G. Johnston <
david(dot)g(dot)johnston(at)gmail(dot)com> wrote:

> On Wednesday, May 23, 2018, Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>
> wrote:
>>
>> INSERT INTO my_table(%s, %s)
>> WHERE NOT EXISTS(SELECT name FROM my_table WHERE name= %s)
>>
>
> INSERT doesn't have a where clause...
>
> David J.
>

What I did is

'''INSERT INTO my_table(name, age)
SELECT %s, %s
WHERE NOT EXISTS(SELECT name FROM my_table WHERE name=%s)''', ('Scott', 23)

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