From: Peter Brawley
Date: February 22 2006 4:21pm
Subject: Re: selecting based on a max() condition
List-Archive: http://lists.mysql.com/mysql/195062
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Octavian,

>I want to select the list of unique symbols and the corresponding price and
>last_update fields for each line where the last_update is equal to the
>last_update field for each symbol.

You're close! See the example at 
http://www.artfulsoftware.com/queries.php#18.

PB

-----

Octavian Rasnita wrote:
> Hi,
>
> I have a table with 3 relevant columns:
> symbol varchar(10) not null
> price decimal not null
> and
> last_update datetime not null
>
> I want to select the list of unique symbols and the corresponding price and
> last_update fields for each line where the last_update is equal to the
> last_update field for each symbol.
>
> I have tried without succes:
>
> select symbol, price, last_update from table where last_update =  (select
> max(last_update) from table);
>
> This gave me a single row. I have tried more complex queries that took a lot
> of time and I needed to break them with ^C.
>
> Thank you.
>
> Teddy
>
>
>   


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