4

我有以下查询，它返回测试问题、这些问题的可能答案以及用户选择每个可能答案的次数：

SELECT  p.program_id, 
        p.pre_survey_form_id, 
        p.post_survey_form_id, 
        fq.form_id, 
        sq.question_id, 
        sq.question_text, 
        qo.question_option_id, 
        qo.option_text, 
        G.Total

FROM    dbo.program p
        LEFT OUTER JOIN dbo.form_question fq
            ON p.pre_survey_form_id = fq.form_id OR p.post_survey_form_id = fq.form_id
        LEFT OUTER JOIN dbo.survey_question sq
            ON fq.question_id = sq.question_id
        LEFT OUTER JOIN dbo.question_option qo 
            ON sq.question_id = qo.question_id
        LEFT OUTER JOIN (
            SELECT ra.question_id, ra.question_option_id, COUNT(*) AS Total
            FROM dbo.form_response_answers ra
            GROUP BY ra.question_option_id, ra.question_id 
        ) G
            ON G.question_id = sq.question_id AND G.question_option_id = qo.question_option_id

ORDER BY p.program_id, fq.form_id, sq.question_id, qo.question_option_id

我唯一需要做的就是总结每个问题的回答数量，但我真的很困惑。我将计算响应的数量并获取用户选择特定响应的次数百分比。

结果集：

----  ----  ----  --  ---------------------------------------------------------------------------  -  ------------  ----
1000  1001  1000  10  How many days a week do you drink at least eight glasses (64 oz.) of water?  1  Never         1
1000  1001  1000  10  How many days a week do you drink at least eight glasses (64 oz.) of water?  2  Once          1
1000  1001  1000  10  How many days a week do you drink at least eight glasses (64 oz.) of water?  3  Two times     NULL
1000  1001  1000  10  How many days a week do you drink at least eight glasses (64 oz.) of water?  4  Three times   2
1000  1001  1000  10  How many days a week do you drink at least eight glasses (64 oz.) of water?  5  Four times    NULL
1000  1001  1000  10  How many days a week do you drink at least eight glasses (64 oz.) of water?  6  Five or more  NULL
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1 回答 1

5

如果我正确理解您的模型，只需添加它即可获得问题被回答的次数：

 LEFT OUTER JOIN (
            SELECT ra.question_id, COUNT(*) AS TotalAnswers
            FROM dbo.form_response_answers ra
            GROUP BY ra.question_id 
        ) G2

然后就像你对 G 所做的那样加入并获得 TotalAnswers。这很简单......所以我很有可能错过了一些东西:)

于 2012-04-10T19:46:58.930 回答