Lexical question...

Hello,

I have a table with a timestamp column and I want to set this to a value
of now() - a random number of days between 0 and 45 for each row... I've
tried to do this a bunch of different ways and can't figure it out...
Here is my latest version:


update sometable set entered_dt = now() - interval round(random()*45)||'
days';


Any ideas on the proper way to accomplish this?

Thanks!

- Greg




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re: Lexical question...

Err, I just read my latest digest and saw the solution:

update datafrenzy.jobdata set entered_dt= now() - CAST(round(random()*45)
|| ' days' AS interval);


- Greg
[color=blue]
>Hello,
>
>I have a table with a timestamp column and I want to set this to a value
>of now() - a random number of days between 0 and 45 for each row... I've
>tried to do this a bunch of different ways and can't figure it out...
>Here is my latest version:
>
>
>update sometable set entered_dt = now() - interval round(random()*45)||'
>days';
>
>
>Any ideas on the proper way to accomplish this?
>
>Thanks!
>
>- Greg
>[/color]



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re: Lexical question...

On Nov 23, 2004, at 5:33 AM, Net Virtual Mailing Lists wrote:
[color=blue]
> I have a table with a timestamp column and I want to set this to a
> value
> of now() - a random number of days between 0 and 45 for each row...
> I've
> tried to do this a bunch of different ways and can't figure it out...
> Here is my latest version:
>
>
> update sometable set entered_dt = now() - interval
> round(random()*45)||'
> days';
>[/color]

Try

select now() - ((round(random()*45))::text || ' days')::interval;

Best,

John DeSoi, Ph.D.
http://pgedit.com/
Power Tools for PostgreSQL



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