先上個效果圖吧

CTE遞歸查詢里面用了一些小的技巧，查詢出結果以后在前端用表格展示出來，層級視覺效果還是很明顯的

with tree as
(
select [ID],[Name],[Address],[Remark],SortNo,Cast(RANK() OVER(order by SortNo,Name) as nvarchar(4000)) Code,cast(''?as?varchar) as prex from SmartHospital where ID=1
union all
select a.[ID],a.Name,a.[Address],a.[Remark],a.SortNo,b.Code +Cast(RANK() OVER(order by a.SortNo,a.Name) as nvarchar(4000)),cast(b.prex+' ' as varchar) from SmartHospital a,tree b where a.PID=b.ID
)
select ID,prex+Name as Name,Address,Remark,SortNo from tree order by Code

?

轉載于:https://www.cnblogs.com/xiaopotian/p/6390647.html

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