for 3)
if you have a set of random values e.g. 1,3, 6, 9, 4
then your sql will be
select * from your-table
where id in (1, 3, 6, 9, 4);
FYI:
if you are using ver 3.23.X, you may use
SELECT * FROM your-table ORDER BY rand() LIMIT 5
contributed from: "Zak Greant" <[EMAIL PROTECTED]>
rand() seems using primary key of your table.
mine works in both old and new versions.
----- Original Message -----
From: "Webmaster" <[EMAIL PROTECTED]>
To: "Tony Shiu" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Wednesday, May 09, 2001 12:27 PM
Subject: Re: SQL help
> i dont follow step #3.
>
>
> At 11:42 PM 5/8/2001, Tony Shiu wrote:
> >i think it is more suitable to do it in programming level in mysql,
> though I
> >know there is a function is M$sql server.
> >
> >if your table schema has a unique id field, before submit a query to
> DB,
> >1) select count(*) from it
> >2) from the above resultset, program to draw whatever number of
> records you
> >want.
> >3) submit the query, select * from it where id in (your random record
> ids);
> >
> >
> >----- Original Message -----
> >From: "Webmaster" <[EMAIL PROTECTED]>
> >To: <[EMAIL PROTECTED]>
> >Sent: Wednesday, May 09, 2001 11:38 AM
> >Subject: SQL help
> >
> >
> >> How do I write SQL in MySQL to randomly select 5 records from a
> table?
> >>
> >>
> >>
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