sqlserver递归,sqlserver递归查询层级

sqlserver 递归查询

CREATE TABLE #tb1(stuId INT,stuName VARCHAR(30),teaId INT);

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INSERT INTO #tb1 (stuId,stuName,teaId)

VALUES(1,'zhou',0),(2,'kong',0),(3,'hong',2),(4,'zhang',1),(5,'liu',4),

(6,'zhao',5),(7,'zheng',6),(8,'wei',7)

;WITH cte AS (

SELECT t.stuId,t.stuName,t.teaId FROM #tb1 AS t

WHERE t.stuId=8

UNION ALL

SELECT t.stuId,t.stuName,t.teaId FROM cte AS c

JOIN #tb1 AS t ON c.teaId=t.stuId

)

SELECT * FROM cte

sqlserver递归算法

With T

As

(

Select * From TB Where newNo=103

Union All

Select TB.* From TB Inner Join T on TB.newNo=T.oldNo

)

Select * From T

怎么用sqlserver实现递归删除目录结构

WITH DirectReports(ManagerID, EmployeeID, Title, EmployeeLevel) AS ( SELECT ManagerID, EmployeeID, Title, 0 AS EmployeeLevel FROM dbo.MyEmployees WHERE ManagerID IS NULL UNION ALL --主要是在此，增加一个union all SELECT e.ManagerID, e.EmployeeID, e.Title, EmployeeLevel + 1 FROM dbo.MyEmployees AS e INNER JOIN DirectReports AS d -- 在此调用自身，就可以实现递归了 ON e.ManagerID = d.EmployeeID ) SELECT ManagerID, EmployeeID, Title, EmployeeLevel FROM DirectReports ORDER BY ManagerID;

sqlserver函数中引用递归

set @p_b = (select fid from w_Storage_Depository where fid in(select fid from dbo.jt_base_company where bj=1))

改成

select  @p_b =fid from w_Storage_Depository where fid in(select fid from dbo.jt_base_company where bj=1)

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