SQL 2 counts with different filter

Question

I have a table and I need calculate two aggregate functions with different conditions in one statement. How can I do this?

Pseudocode below:

SELECT c         


        

Answer 1

select '< 0' as filter, COUNT(0) as cnt from TableA where [condition 1]
union
select '> 0' as filter, COUNT(0) as cnt from TableA where [condition 2]

Be sure that condition 1 and condition 2 create a partition on the original set of records, otherwise same records could be counted in both groups.