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SQL Server Count() and Distinct in Same Query

Posted on 2015-01-21
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Last Modified: 2015-01-21
I have an employee table with 4 columns (id, type, class, and name). I want to count the number of employees in the table for each unique combination of type and class. So if the table looks like:

ID           Type          Class         Name
123           I                  A            Smith
124           I                  A            Jones
129           I                  C            Franklin
125          I I                 A            Jenkins
126          I I                 B            Smith

I want my result set to look like:

Type       Class       Count
   I               A               2
   I               C               1
  I I              A               1
   I               B               1

I've tried the following but SQL Server doesn't like it

select count(*)
from (
select distinct type, class from employee)

Any ideas?

Thanks in advance for your help
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Comment
Question by:cbridgman
3 Comments
 
LVL 48

Accepted Solution

by:
Vitor Montalvão earned 500 total points
ID: 40562234
SELECT Type, Class, Count(1) qty
FROM employee
GROUP BY Type, Class

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LVL 12

Expert Comment

by:FarWest
ID: 40562235
did you try this?

select count(*),type,class from employee
group by type,class
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Author Closing Comment

by:cbridgman
ID: 40562610
Thanks for the feedback. I searched all over the place for the answer to this and couldn't find anything simple like this. Works like a charm.
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