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multiple counts

Author

Topic

esthera
Master Smack Fu Yak Hacker

1410 Posts

Posted - 2013-05-17 : 03:28:04

i have a table

name
response
response2
response3

now i want to make query where i retur

name response response2 response3

and for each name i put the count of how many records had a response for each of them

can i do a group by with a count of different fields where they are not null?

bandi
Master Smack Fu Yak Hacker

2242 Posts

Posted - 2013-05-17 : 03:33:26

You can use COUNT(Specific ColumnName) OVER(PARTITION BY name)

--
Chandu

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-05-17 : 03:38:50

[code]
SELECT name,
SUM(CASE WHEN response > '' THEN 1 ELSE 0 END) AS response,
SUM(CASE WHEN response2 > '' THEN 1 ELSE 0 END) AS response2,
SUM(CASE WHEN response3 > '' THEN 1 ELSE 0 END) AS response3
FROM Table
GROUP BY name
[/code]

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/
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visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-05-17 : 03:39:39

if you want to make it dynamic

http://sqlblogcasts.com/blogs/madhivanan/archive/2007/08/27/dynamic-crosstab-with-multiple-pivot-columns.aspx

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/
https://www.facebook.com/VmBlogs

Bustaz Kool
Master Smack Fu Yak Hacker

1834 Posts

Posted - 2013-05-17 : 18:32:48

If your "empty" are indeed NULL then you can use:[CODE]select count(*) cAll, count(response) cnt1, count(response2) cnt2, count(response3) cnt3
from MyTable[/CODE]The aggregate functions ignore null columns (except count(*) of course).

=================================================
I am not one of those who in expressing opinions confine themselves to facts. (Mark Twain)

esthera
Master Smack Fu Yak Hacker

1410 Posts

Posted - 2013-05-19 : 05:34:36

thanks - these were very helpful responses

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-05-20 : 01:13:35

welcome

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/
https://www.facebook.com/VmBlogs

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