数据库整合数据报表SQL实战

协助同事整理sql统计报表。

---建立由avalue的视图，要过滤重复数据
CREATE VIEW vLectAnswerRecord
as
SELECT t2.OpenID,t2.Qguid,t1.AValue av FROM TbLectAnswer t1,TbLectAnswerRecord t2 WHERE t1.AID=t2.AID

---获取用户组合答案
SELECT Qguid,OpenID, data=STUFF((
SELECT ','+[t].[av] FROM vLectAnswerRecord t WHERE t.Qguid=t1.Qguid AND t.openid=t1.OpenID FOR XML PATH('')
), 1, 1, '')
FROM vLectAnswerRecord t1 GROUP BY qguid,OpenID

---将组合答案插入到临时表

INSERT into tbtmp( Qguid,OpenID,avs)

SELECT Qguid,OpenID, data=STUFF((
SELECT ','+[t].[av] FROM vLectAnswerRecord t WHERE t.Qguid=t1.Qguid AND t.openid=t1.OpenID FOR XML PATH('')
), 1, 1, '')
FROM vLectAnswerRecord t1 GROUP BY qguid,OpenID

---将组合的逗号去掉
UPDATE tbtmp SET avs2=REPLACE(avs,',','')

---关联试题正确答案表，得出用户题目是否正确
---SELECT * FROM tbtmp

UPDATE tbtmp SET istrue=1
FROM tbtmp INNER JOIN
TBLectQuestion ON tbtmp.Qguid=TBLectQuestion.Qguid AND tbtmp.avs=TBLectQuestion.QResult

--- SELECT TOP 100 Lguid,QResult,Qguid,QType FROM dbo.TBLectQuestion WHERE qguid='5ff05fb1ff62ddbc31324dc30aae5c31'