Re: Need to count number of rows per id! :(
| From: | Julian Wood | Date: | Sat, 03 Feb 2001 03:37:10 +0000 |
| Subject: | Re: Need to count number of rows per id! :( | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-37930@lists.php.net to get a copy of this message | ||
Are you looking for select topicID, count(*) from $secondtable group by
topicID? This will give you a count of each distinct topicID in
$secondtable.
Julian
--
Julian Wood
Multimedia Developer
University of Calgary
on 2/2/01 6:15 PM, Sandeep Hundal at sandeep_wde@yahoo.com wrote:
>
> Hey guys,
>
> I need an answer to a problem I've been trying to work on for days :(
>
> I made a message board, which has a front page which lists Topic
> name, topic started by, and what date. All this info, and the topic
> message is stored in one mysql table. when you click on any of the
> topics, it leads to a page which lists all replies to that topic by
> topic_id.
>
> Now what I want to do is have a listen on the first index page, the
> number of replies for that particular topic. I know I need something
> like select id from $secondtable where topicid=$topicid, and then use
> mysql_num_rows, but I can't figure out how to integrate the first set
> of results from table 1 with the query on table 2.
>
> This is the query on the front page on the main table :
> $query = "SELECT topicid, icon, name, topic, datestamp FROM
> $maintable ORDER by datestamp DESC LIMIT 40 ";
> $result = mysql_query($query);
>
> TIA!
>
> Sandeep
>
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