I even think Tomasz suggestion can be moved to the ORDER BY itself, at least it worked for me when I tried (well, I used iif(cast(:MyParameter as integer, Amount1, Amount2))
select ID, Amount1, Amount2, ... from Table1 union select ID, Amount1, Amount2, ... from Table2 order by iif(your condition, Amount1, Amount2) Set 2017-10-24 1:34 GMT+02:00 j...@acousticdesign.co.uk [firebird-support] < firebird-support@yahoogroups.com>: > > > Thanks for your reply. I haven't tried it as I came across Tomasz's > suggestion first, and that works a treat! > > >
