问题：
declare @test varchar(1000)
declare @total Integer
SET @test= '21,23,24,25,26,27'
EXEC ('
declare @count Integer
select @count=count(*) from NeiEntityContainmentTable
WHERE myentitytype in (' + @test + ')')
我想将@count的结果返回到@total中，如何？？？
回答：
---------------------------------------------------------------
declare @test Nvarchar(1000)
declare @total Int
declare @sql Nvarchar(1000)
SET @test= N'21,23,24,25,26,27'
set @sql=N'
select @count=count(*) from NeiEntityContainmentTable
WHERE myentitytype in (' + @test + N')'
exec sp_executesql @sql, N'@count int output', @total output