我有一个看起来像这样的表:
DtCreated | UserName | Question | Answer
2016-09-24 14:30:11.927 | mauricio | Senha | 99658202
2016-09-24 14:30:11.927 | mauricio | Inteiro | 10
2016-09-24 14:30:11.927 | mauricio | Telefone | (915) 438-05
2016-09-24 14:30:11.927 | mauricio | Email | mauriiciobarbosa@gmail.com
2016-09-24 14:30:11.927 | mauricio | Texto Livre | nksnksjksj nsjsnsjjs
2016-09-24 14:30:11.927 | mauricio | Decimal | 0.9
如何使用 pivot 将这些数据转换成这个?
DtCreated | UserName | Senha | Inteiro | Telefone | Email | Texto Livre | Decimal
2016-09-24 14:30:11.927 | mauricio | 99658202 | 10 | (915) 438-05 | mauriiciobarbosa@gmail.com | nksnksjksj nsjsnsjjs | 0.9
PS:“问题”列具有动态创建的值,数据应按“DtCreated”和“用户名”字段分组。
这是我现在使用的 SQL 代码:
SELECT
sf.[DtCreated],
sf.[UserName],
fc.Title as Question,
sv.Value as Answer
FROM [form].[SubmissionForm] sf
inner join [form].[Submission] s on
sf.id = s.SubmissionForm_Id
inner join [form].[FormComponent] fc on s.FormComponentId = fc.Id
inner join [form].[SubmissionValue] sv on s.Id = sv.Submission_Id
where sf.Id = '0DBA8590-C33E-48F8-9E64-C68EEFC536FF'
order by sf.[DtCreated]
我找到了一些动态数据透视示例,但无法将它们放入我的具体案例中。任何帮助,将不胜感激。谢谢。
编辑:
感谢 Prdp,我快到了。这是到目前为止的动态数据透视代码:
DECLARE @sql VARCHAR(max)='',
@col_list VARCHAR(8000)=''
SET @col_list = (SELECT DISTINCT Quotename(fc.Title) + ','
FROM [form].[SubmissionForm] sf
inner join [form].[Submission] s on
sf.id = s.SubmissionForm_Id
inner join [form].[FormComponent] fc on s.FormComponentId = fc.Id
inner join [form].[SubmissionValue] sv on s.Id = sv.Submission_Id
FOR xml path(''))
SET @col_list = LEFT (@col_list, Len(@col_list) - 1)
SET @sql = 'select [DtCreated],[UserName]' + @col_list
+ ' from (SELECT
sf.[DtCreated],
sf.[UserName],
fc.Title,
sv.Value
FROM [form].[SubmissionForm] sf
inner join [form].[Submission] s on
sf.id = s.SubmissionForm_Id
inner join [form].[FormComponent] fc on s.FormComponentId = fc.Id
inner join [form].[SubmissionValue] sv on s.Id = sv.Submission_Id
) pivot (max([sv.Value]) for [fc.Title] in ('
+ @col_list + '))pv'
EXEC(@sql)