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Re: SQL( "if ...exists...),how to do it in the PostgreSQL?

From: Robert Forsman <thoth(at)purplefrog(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Re: SQL( "if ...exists...),how to do it in the PostgreSQL?
Date: 2001-06-06 22:32:37
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
Eric writes:

>    I can realize this function in the SYBase,but How can i do it in the PostgreSQL?
> /****SQL***/
> if not exists(select id from test) insert into test(id) values (280);
> /*********/

I don't know if this is SQL92, but 

insert into test(id) select 280 where not exists(select id from test);

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