I am trying to run the following query against my database:
select username,sum(acctsessiontime) as s from radacct where
acctstarttime > 19990326111500 and acctstoptime < 19990326131500 and
acctstoptime != 0 and s != 0 group by username order by s desc;
It tells me Unknown column 's' in 'where clause'
Am I doing the query wrong? I used s as an ORDER BY but it won't let me
use it in a WHERE clause? I thought 'as s' lets me use s as if it were a
column. It workes just fine if I leave off the 'and s != 0' part (but
then I get rows I didn't really want).