Hi !
It's long ago since I used SQL :-)
select [expression 1] as [alias 1], [expression 2] as [alias 2]
where [alias 1] < [alias 2]
order by [alias 2] - [alias 1]
---> ERROR: Attribute '[alias 1]' not found
I found a lot of 'select [expression] as' but I've never seen somebody
accessing the alias ... Can't this be done ?
M.