In SQL, how can I count the number of values in a column and then pivot it so the column becomes the

Posted by Josh Yeager on Stack Overflow See other posts from Stack Overflow or by Josh Yeager
Published on 2010-06-17T17:08:48Z Indexed on 2010/06/17 17:13 UTC
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sql

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reporting

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Survey

I have a survey database with one column for each question and one row for each person who responds. Each question is answered with a value from 1 to 3.

Id    Quality?  Speed?
--    -------   -----
1     3         1
2     2         1
3     2         3
4     3         2

Now, I need to display the results as one row per question, with a column for each response number, and the value in each column being the number of responses that used that answer. Finally, I need to calculate the total score, which is the number of 1's plus two times the number of 2's plus three times the number of threes.

Question  1    2    3    Total
--------  --   --   --   -----
Quality?  0    2    2    10
Speed?    2    1    1    7

Is there a way to do this in set-based SQL? I know how to do it using loops in C# or cursors in SQL, but I'm trying to make it work in a reporting tool that doesn't support cursors.

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