Re: PHP Newbie- Display Aggregates in HTML Table

[Tommy Gildseth <gildseth(at)start(dot)no>]

Reed Loefgren wrote:
> All,
>
> I have a query that returns data that includes a sum(). I can't get this 
> sum to display in an html table. Like so (in part):
>
> Example bit:
>
> psql test: select code, blah, sum(time) from test;
>
> Portion of PHP table code:
>
> while($myrow = pg_fetch_assoc($result)) {
>     printf ("<tr><td>%s</td><td>%s</td><td>%s</td></tr>",
>       $myrow['code'], $myrow['blah'], $myrow['<what goes here?>']);


To display the result of an function, it's usually best to alias the 
value, like so: select code, blah, sum(time) AS the_sum from test;
That way, you can use $myrow['the_sum'] to access that value. You could 
also do $myrow['sum(time)'], but it doesn't, imo, look very nice.

The reason why your query doesn't work, is because you're trying to use 
an agregate function without a group by clause. ...Which would work 
fine, if you did just SELECT sum(time) FROM test, but not when you do 
SELECT code, blah, sum(time) FROM test.

Tommy