SqlServer递归查询

最近整理字典，频繁用到递归查询，老是记不住，留个代码以后备用！

 with cte as 

(select Zdxmc ,(select Zdxmc from GC_Sys_Zdx where Zdxid = a.Parentid) as 'Parent',a.Parentid from GC_Sys_Zdx a where Bz = '现从事专业'
 union all 

select b.Zdxmc,(select Zdxmc from GC_Sys_Zdx where Zdxid = b.Parentid) as 'Parent',b.Parentid from  cte,GC_Sys_Zdx b where cte.Parentid = b.Zdxid

)

 select *  from cte