Re: how to use aggregate functions in this case

Janek Sendrowski wrote
> 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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You have to write three queries (select statements) and then "UNION ALL"
them together. Each sub-query has a where clause matching the range you
wish to aggregate for.

David J.

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