>This is starting to get messy.
>Can I set up an alias for the total?
That's exactly what HAVING is for.
PB
[EMAIL PROTECTED] wrote:
Ok, I have this so far
$query = "SELECT * FROM properties where
single_rooms+double_rooms+twin_rooms<10 and rent < 100";
This is fine but what I really want to do it this
$query = "SELECT * FROM properties WHERE
single_rooms+double_rooms+twin_rooms<10 AND
single_rooms+double_rooms+twin_rooms<10 AND rent < 100";
This is starting to get messy. Can I set up an alias for the total? I
tried this without success.
$query = "SELECT *, single_rooms+double_rooms+twin_rooms AS total
FROM properties WHERE total >2 AND total <10
R.
----- Original Message ----- From: "Edward Kay" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>; <mysql@lists.mysql.com>
Sent: Thursday, May 10, 2007 10:17 AM
Subject: RE: adding 3 values
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> Sent: 10 May 2007 10:08
> To: mysql@lists.mysql.com
> Subject: adding 3 values
>
>
> Hi,
>
> I have 3 integer values in the table single_rooms, double_rooms,
> twin _ooms but want to add them all up to do a comparison to see
> if the combined number of rooms is less than ten.
>
> Ta,
>
> R.
>
>
SELECT SUM(single_rooms, double_rooms, twin_rooms) from TABLE;
Or, if you want a boolean value depending if there are less than 10:
SELECT IF(SUM(single_rooms, double_rooms, twin_rooms) < 10,1,0)
from TABLE;
Sorry, brain was switched off when I wrote that. It should be:
SELECT single_rooms+double_rooms+twin_rooms from TABLE;
Or, if you want a boolean value depending if there are less than 10:
SELECT IF((single_rooms+double_rooms+twin_rooms) < 10,1,0) from TABLE;
Edward
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