Count Field in SQL

Dear Experts,

I have a table( id, duration) and its data are as follows:

id          duration
=          =====
1           0
2           5
3           0
4           1
5           2
6           9

I want a result by SQL query with the following two fields:
Count(duration only 0)   Count(duration not 0)
==============   ==============
2                                 4

raju1Asked:
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Guy Hengel [angelIII / a3]Connect With a Mentor Billing EngineerCommented:
select  sum ( case when  duration = 0 then 1 else 0 end ) duration_0
, sum ( case when  duration = 0 then 0 else 1 end ) duration_not_0
from yourtable
0
 
raju1Author Commented:
it doesn't show any result.

Error message:
"Function Sum does not exist;"
0
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