表结构为 ID Name ParentID
如何通过一个存储过程 searchID (ID,level)遍历树?
其中level为层差
sqlserver通过存储过程遍历树
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- danielinbiti 2015-05-29 07:04关注
create table createtable( id int, name varchar(100), parentID int ) insert into createtable(ID,Name,ParentID ) values(1,'1',0); insert into createtable(ID,Name,ParentID ) values(2,'1-1',1); insert into createtable(ID,Name,ParentID ) values(3,'1-2',1); insert into createtable(ID,Name,ParentID ) values(4,'1-2-1',3); insert into createtable(ID,Name,ParentID ) values(5,'2',0); insert into createtable(ID,Name,ParentID ) values(6,'2-1',0); create proc searchID @ID int as begin WITH cte AS ( SELECT * ,0 AS level FROM createtable WHERE ID=@ID UNION ALL SELECT g.*,level+1 FROM createtable g INNER JOIN cte ON g.ParentID=cte.ID ) SELECT * FROM cte end exec searchID '1'
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