如何为此编写动态SQL？

CREATE PROCEDURE dbo.allSPExecute( @id INT ) 
AS  
BEGIN   
  DECLARE @query VARCHAR(MAX);   
  SELECT @query =   (
    SELECT ExecPart + \' \' + SUBSTRING(Params,2,LEN(Params)) + CHAR(10)
    FROM
    (
      SELECT 
        ExecPart =\'EXEC \' +(SELECT TOP 1 Name FROM MyTable WHERE ID = @id) ,
        Params = (SELECT \', \' + Dcol + \' = \' + Scol 
                  FROM MyTable t1 WHERE ID = @id AND t1.IOrd = t.IOrd FOR XML PATH(\'\'))
      FROM MyTable t
      WHERE ID = @id
      GROUP BY IOrd
    ) t
    FOR XML PATH(\'\')   
  ) 

  EXEC (@query) 
END

Create Procedure dbo.allSPExecute( @id int)
as

DECLARE @SQL varchar(max)

SET @SQL = \'USE MyDB\'

SELECT @SQL = @SQL +
\'EXEC \' + t.Name + \' @day = 7,\' + t.Dcol + \' = \'\'\' + t.Scol + \'\'
FROM MyTable t
WHERE t.id = @ID

EXEC (@SQL)

declare @dynsql as nvarchar(300)
declare @tname as nvarchar(100)
declare @tscol as nvarchar(100)
declare @tdcol as nvarchar(100)

set @dynsql = \'\'

declare ticker as cursor for select Name, SCol, DCol from Lookup
open ticker
fetch next from ticker into @tname, @tscol, @tdcol

while @@FETCH_STATUS = 0
BEGIN

set @dynsql = \'EXEC \' + @tname + \' @day=7, \' + @tdcol + \'=\'\'\' + @tscol + \'\'\'\'

exec(@dynsql)

FETCH NEXT from ticker into @tname, @tscol, @tdcol
END

close ticker
deallocate ticker