我有一个表Columns
如何行转换为列在SQL
,并在所有的数据保存在第二台Response
。
现在我想创建一个SQL视图中的结果应该是这样的
我尝试使用透视
select UserId ,FromDate, ToDate, Project, Comment
from
(
select R.UserId ,R.Text , C.ColumnName
from [Columns] C
INNER JOIN Response R ON C.Id=R.ColumnId
) d
pivot
(
max(Text)
for ColumnName in (FromDate, ToDate, Project, Comment)
) piv;
,但没有为我工作,我也提到这Efficiently convert rows to columns in sql server,但无法实现它。任何想法如何在SQL视图中实现相同?
脚本为表:
CREATE TABLE [dbo].[Columns](
[Id] [bigint] IDENTITY(1,1) NOT NULL,
[Name] [nvarchar](1000) NULL,
[IsActive] [bit] NULL,
CONSTRAINT [PK_Columns] PRIMARY KEY CLUSTERED
(
[Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
insert into [Columns] values('FromDate',1)
insert into [Columns] values('ToDate',1)
insert into [Columns] values('Project',1)
insert into [Columns] values('Comment',1)
CREATE TABLE [dbo].[Response](
[Id] [bigint] IDENTITY(1,1) NOT NULL,
[UserId] [bigint] NOT NULL,
[ColumnId] [bigint] NOT NULL,
[Text] [nvarchar](max) NULL,
[IsActive] [bit] NULL,
CONSTRAINT [PK_Response] PRIMARY KEY CLUSTERED
(
[Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
insert into [Response] values(1,1,'1/1/2012',1)
insert into [Response] values(1,2,'1/2/2012',1)
insert into [Response] values(1,3,'p1',1)
insert into [Response] values(1,4,'c1',1)
insert into [Response] values(2,1,'1/1/2013',1)
insert into [Response] values(2,2,'1/2/2013',1)
insert into [Response] values(2,3,'p2',1)
insert into [Response] values(2,4,'c2',1)
insert into [Response] values(2,1,'1/1/2014',1)
insert into [Response] values(2,2,'1/2/2014',1)
insert into [Response] values(2,3,'p3',1)
insert into [Response] values(2,4,'c3',1)
insert into [Response] values(3,1,'1/1/2015',1)
insert into [Response] values(3,2,'1/2/2015',1)
insert into [Response] values(3,3,'p4',1)
insert into [Response] values(3,4,'c4',1)
显示什么对你没用。 –
@WEI_DBA:枢轴 –
您可以显示您尝试使用的数据透视查询吗? –