On 2016-03-08 16:18, 'Checkmail' check_m...@satron.de [firebird-support] wrote: > Hello, > > in the further version of firebird I can execute the following and > get > the real value of m (exists in tlager_sum) > > select a.teilenr, a.bezeichnung, a.minb, coalesce(b.menge,0) as m, > a.typ > > from tteile a left join tlager_sum b on (a.teilenr = b.teilenr) > > where ((a.minb > coalesce(b.menge,0)) > > and (a.typ = 1)) order by a.teilenr > > In any case when it is no amount in the table tlager_sum (null), it > should seen as 0 (not present) and if the minimum amount iss higher.. > > But, since fb 3 I get 0, why? The tlager_sum has for many records a > mass. If I change to > > a.minb > b.menge > > it works for these records, but not for any with no amount. > > What can be the issue?
It is not clear to me what your problem is. Could you describe it in more detail and provide a sample dataset, expected results and actual results? Mark
