Jochem van Dieten <[EMAIL PROTECTED]> wrote on 11/07/2005 03:32:25 PM:
> On 11/7/05, mos wrote:
> > Why isn't there a way to reference column aliases in the columns list
or
> > where clause?
>
> Because the SQL standad says so. See chapter 7 of ISO/IEC 9075-2:2003.
>
>
> > select if(score<50,-
On 11/7/05, mos wrote:
> Why isn't there a way to reference column aliases in the columns list or
> where clause?
Because the SQL standad says so. See chapter 7 of ISO/IEC 9075-2:2003.
> select if(score<50,-5,0) failing_score, if(score>50, 1, 0) passing_score,
> attendance/totaldays Percent_Atte
> Why isn't there a way to reference column aliases in the columns list or
> where clause?
http://dev.mysql.com/doc/refman/5.0/en/problems-with-alias.html
That's why.
--
Scott Noyes
[EMAIL PROTECTED]
--
MySQL General Mailing List
For list archives: http://lists.mysql.com/mysql
To unsubscribe:
Why isn't there a way to reference column aliases in the columns list or
where clause?
Example:
select if(score<50,-5,0) failing_score, if(score>50, 1, 0) passing_score,
attendance/totaldays Percent_Attendance ,
failing_score/passing_score*percent_attendance
from schoolwork
(There is no logi
