SQLSERVER的递归

CREATE FUNCTION [dbo].[GetAllChildrenTypeById]
(
    @id varchar(50)
)
RETURNS TABLE 

AS


RETURN 
with cte as
(
 SELECT [id]
      ,[dictionaryTypeCode]
      ,[text]
      ,[parentId]
      ,[sort]
      ,[availabl]
      ,[leaf]
      ,[url]
      ,[value] FROM [Dictionary] where ID = @id
union all
SELECT a.[id],a.[dictionaryTypeCode],a.[text],a.[parentId],a.[sort],a.[availabl],a.[leaf],a.[url],a.[value] FROM [Dictionary] a  join cte b on a.[parentId] = b.Id
)
select id from cte 


GO