Question

On one of my interviews I was asked how it’s possible to select
maximal value from DB without keyword MAX and TOP.

My answer was:

select Table.Value 
from Table 
where Table.Value >= all( select Table.Value from Table) 

But this wasn’t the right one. The interviewer said that
I should do it only with one select.

Any ideas ?

Thank you 😉

Answer 1

How about;

select -min(-fld) from table

Less efficient & uglier Woops missed the single select restriction

select distinct Value from Table T
  where not exists (select Value from Table where Value > T.Value)