从存储过程将数据插入SQL Server

Question

我的SQL知识到目前为止，请帮我解决我的问题：

我有一个生成一些数据的脚本。我需要将这些数据插入到具有以下结构的表中：

Variable_Sample (idsample, idvariable, value), idsample and idvariable - PK.

这是脚本：

Declare params cursor for
 Select distinct id_variable from [UIR_DB].[dbo].[Variable_Values]
open params
Declare @idparam int
Declare @csql nvarchar(max)  = ''
Declare @csql2 nvarchar(max)  = ''
Declare @i int = 1
fetch next from params into @idparam
while @@FETCH_STATUS = 0
begin
Select @csql2 = @csql2 + ', param' +LTrim(Str(@i))
Select @csql = @csql +  ' (Select value as param'+LTrim(Str(@i))+' from [UIR_DB].[dbo].[Variable_Values] where id_variable = '+LTrim(Str(@idparam))+') a'+LTrim(Str(@i))+' cross join'
Set @i = @i+1
fetch next from params into @idparam
end
Select @csql = '
SELECT id, CAST(SubString(Param,6,LEN(Param)-5) as int) param_id, param_val
FROM
(Select ROW_Number() over(order by '+SubString(@csql2,2,LEN(@csql2)-1)+') id, '+SubString(@csql2,2,LEN(@csql2)-1)+' from '+SubString(@csql,1,LEN(@csql)-11) + ') p
UNPIVOT
   (param_val FOR Param IN
      ('+SubString(@csql2,2,LEN(@csql2)-1)+')
)AS unpvt
'

print @csql
exec sp_executesql @csql
close params
deallocate params

这是脚本结果：

所以我需要将脚本结果放到表Variable_Sample(idsample, idvariable, value)中，其中（idsample, idvariable）是表的主键。

Answer 1

您可以将其添加到脚本的末尾，而不是EXEC sp_executesql @csql：

CREATE TABLE #temptable (idsample INT, idvariable INT, value INT)
INSERT INTO #temptable EXEC @csql

SELECT idsample, idvariable, value FROM #temptable

DROP TABLE #temptable

Answer 2

我认为您需要的只是： 将插入添加到@csql

e.g。

Insert into variable_sample(idsample, idvariable, value)
SELECT id, CAST(SubString(Param,6,LEN(Param)-5) as int) param_id, param_val
FROM
(Select ROW_Number() over(order by '+SubString(@csql2,2,LEN(@csql2)-1)+') id, '+SubString(@csql2,2,LEN(@csql2)-1)+' from '+SubString(@csql,1,LEN(@csql)-11) + ') p
UNPIVOT
   (param_val FOR Param IN
      ('+SubString(@csql2,2,LEN(@csql2)-1)+')
)AS unpvt

假设该表已经存在。