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