how to use aggregate functions in this case

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От Janek Sendrowski
Тема how to use aggregate functions in this case
Дата
Msg-id trinity-787472a4-53b7-4fff-9d01-69a266e6aa61-1377467943440@3capp-webde-bs31
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Ответы Re: how to use aggregate functions in this case  (David Johnston <polobo@yahoo.com>)
Re: how to use aggregate functions in this case  (BladeOfLight16 <bladeoflight16@gmail.com>)
Список pgsql-general
Hi,

Thats my code snipped:
 
SELECT  v_rec1.user,
        sum(CASE WHEN v_rec_fts.lev BETWEEN 0 AND 25 THEN 1 ELSE 0 END) as "0 to 25",
        sum(CASE WHEN v_rec_fts.lev BETWEEN 25 AND 50 THEN 1 ELSE 0 END) as "25 to 50",
        sum(CASE WHEN v_rec_fts.lev BETWEEN 50 AND 100 THEN 1 ELSE 0 END) as "50 to 100"
        INTO v_rec2
        GROUP BY user;

Now I want to summuarize the "0 to 25" values and the others in the same query.
Somehow like this: count("0 to 25")
But I want to do it with every single user and I don't know how to do that

A result should look like this:

user      percentage    count
smith     "0 to 25"     5
smith     "25 to 50"    7
smith     "50 to 75"    2
jones     "0 to 25"     11
jones     "25 to 50"    1
jones     "50 to 75"    3

Hope someone who can help me

Janek Sendrowski


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