我的下表包含以下示例数据
ID Language Question SubQuestion SubSubQuestion TotalCount TotalPercent
3 E 9 0 1 88527 73%
3 E 9 0 2 19684 16%
3 E 9 0 3 12960 11%
3 E 9 0 9 933 1%
我希望所有人都像这样
ID Language TotalCount901 TotalPercent901 TotalCount902 TotalPercent902 TotalCount903 TotalPercent903
3 E 88527 73% 19684 16% 12960 11%
我已经厌倦了使用pivot命令,但它很适合我。
答案 0 :(得分:2)
我根据您的列名做了一些假设,但看起来您想要使用与此类似的东西。这同时适用UNPIVOT
和PIVOT
来获取您请求的列中的值:
select *
from
(
select id,
language,
col + cast(QUESTION as varchar(10))
+cast(subquestion as varchar(10))
+cast(SubSubQuestion as varchar(10)) col,
value
from
(
select id, language,
cast(TotalCount as varchar(10)) TotalCount,
totalPercent,
question, subquestion, SubSubQuestion
from yourtable
) usrc
unpivot
(
value
for col in (totalcount, totalpercent)
) un
) srcpiv
pivot
(
max(value)
for col in ([TotalCount901], [totalPercent901],
[TotalCount902], [totalPercent902],
[TotalCount903], [totalPercent903],
[TotalCount909], [totalPercent909])
) p
注意:执行UNPIVOT
时,列必须具有相同的数据类型。如果不是,那么您将需要转换/强制转换以获得相同的数据类型。
如果要转换的数量未知,可以使用动态sql:
DECLARE @query AS NVARCHAR(MAX),
@colsPivot as NVARCHAR(MAX)
select @colsPivot
= STUFF((SELECT ','
+ QUOTENAME(c.name +
cast(QUESTION as varchar(10))
+cast(subquestion as varchar(10))
+cast(SubSubQuestion as varchar(10)))
from yourtable t
cross apply sys.columns as C
where C.object_id = object_id('yourtable') and
C.name in ('TotalCount', 'TotalPercent')
group by c.name, t.question, t.subquestion, t.subsubquestion
order by t.SubSubQuestion
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set @query = 'select *
from
(
select id,
language,
col + cast(QUESTION as varchar(10))
+cast(subquestion as varchar(10))
+cast(SubSubQuestion as varchar(10)) col,
value
from
(
select id, language,
cast(TotalCount as varchar(10)) TotalCount,
totalPercent,
question, subquestion, SubSubQuestion
from yourtable
) usrc
unpivot
(
value
for col in (totalcount, totalpercent)
) un
) srcpiv
pivot
(
max(value)
for col in (' + @colsPivot + ')
) p '
execute(@query)