Question

Let me explain: I need to sort a list in ascending order, while results leave less than zero at the end.

Example:

**Field**  
2  
5  
15  
19  
0  
-5  
-19 

I think I can join result of two queries using UNION, but I want to do using only one, is it possible?

Any answer telling how to order thay way will be appreciated.

Answer 1

Use the following ORDER BY at the end of your normal query (no union)

order by (case when field>0 then 0 else 1 end), field

Or, if your database system’s SQL flavor supports implicit conversion of booleans to integers:

order by (field <= 0), field