Re: randomized order in select?

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От scott.marlowe
Тема Re: randomized order in select?
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Msg-id Pine.LNX.4.33.0403101205190.11278-100000@css120.ihs.com
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Ответ на randomized order in select?  (Enver ALTIN <enver.altin@frontsite.com.tr>)
Список pgsql-sql
On Wed, 10 Mar 2004, Enver ALTIN wrote:

> Hi,
> 
> I have got a simple table like this:
> 
>         create table tips (
>             id integer primary key unique,
>             tiptext text
>         );
> 
> and, I've got a website where I'm willing to show these tips in a random
> order. Each visitor will get a randomly selected tip. So for now, I have
> to do 2 queries:
> 
>     select id from tips
> 
> collect an ID list, choose one randomly and retrieve it. I wish I could
> do something like:
> 
>     select tiptext from tips order by random limit 1

You mean like:

select * from table order by random();

That Works as far back as 7.2, maybe before.



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