Question

How can the lookup order of ‘where exists’ be changed

example

SELECT name, dialcode
FROM np_prefixes
WHERE EXISTS ( SELECT d.name 
            FROM np_prefixes d
            GROUP BY d.name )
GROUP BY name

)

I require to get the first record it comes across in the reverse order it is currently getting
as a example the result returned is 21379 (high to low) but I require 21377(low to high)

Answer 1

try this:

Select name, Min(dialcode)
From np_prefixes 
Where Exists( Select d.name  
              From np_prefixes d 
              Group By d.name ) 
Group By name 

and actually, you don’t need the Where Exists
(as you’ve written it, it doesn’t do anything anyway):

Select name, Min(dialcode)
From np_prefixes 
Where name is not null 
Group By name