Kevin, how about this scenario?
<cfquery name="query1">
Select count(*) from users where lastname like 'smith%'
</cfquery>
<cfif query1.count gt 500>
Notify users that they have to do a nightly scheduled report.
<cfelse>
/* run a full-on query */
<cfquery name="query2">
Select lastname, firstname, phone, address, blah blah
from users where lastname like 'smith%'
</cfquery>
</cfif>
-----Original Message-----
From: Kevin Aebig [mailto:[EMAIL PROTECTED]
Sent: Tuesday, August 30, 2005 11:59 AM
To: CF-Talk
Subject: RE: CF Test
One... I'm not laughing.
Two... Exactly my point. I can't remember the last time I *only* needed
a
count.
Cheers,
Kevin
-----Original Message-----
From: Nick Han [mailto:[EMAIL PROTECTED]
Sent: August 30, 2005 12:45 PM
To: CF-Talk
Subject: RE: CF Test
> Using a count makes that query completely useless. It can't be reused,
>nor does it return anything of relevance. Which means its sole purpose
is >to bring back a single number...
What?! A dba will laugh his or her ass off if he/she heard this.
Select count(*) from table versus select * from table makes a big
difference when you have thousands of records, if all you need is a
record count.
-----Original Message-----
From: Kevin Aebig [mailto:[EMAIL PROTECTED]
Sent: Tuesday, August 30, 2005 10:07 AM
To: CF-Talk
Subject: RE: CF Test
Using a count makes that query completely useless. It can't be reused,
nor
does it return anything of relevance. Which means its sole purpose is to
bring back a single number...
And no matter what you're calling, it's a hit on the DB, the web server
memory and network traffic. To what extent depends on the query and
coding
style as well as the project in question.
I'm not saying SELECT * is a better query, but I do believe it's smarter
to
roll multiple uses into a single result set.
Cheers,
Kevin
-----Original Message-----
From: Mark A Kruger [mailto:[EMAIL PROTECTED]
Sent: August 30, 2005 10:38 AM
To: CF-Talk
Subject: RE: CF Test
Kevin,
This is not a pointless query
<CFQUERY NAME="test" DATASOURCE="test">
SELECT Count(*) AS total
FROM TestTable
</CFQUERY>
You would NOT want to select all the records in a table if all you
wanted
was the total. Otherwise you are bringing in the whole kit and caboodle
and
then just discarding the rows in favor of the meta data. It's a hit on
the
DB, the web server memory and network traffic - particularly for large
recordsets.
-Mark
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