如何在二叉树中查找特定成员的所有父代

问题描述

在给定的过程中，我想找到特定MemId的parentId

in the given procedure I would like to find the parentId for a particular MemId

Create PROCEDURE [dbo].[AddTempMember](@ParentId int,@ThroughOverId int, @Leg VARCHAR(50),@lleg varchar(50),@rleg varchar(50),@Title varchar(50),@FirstName varchar(50),@LastName varchar(50), @Type varchar(50),@FathersName varchar(50),@MothersName varchar(50), @MaritalStatus varchar(50), @Address varchar(50), @City varchar(50), @State varchar(50),@Country varchar(50),@Pin varchar(50),@Std varchar(50),@Phone varchar(50),@Mobile varchar(50),@Email varchar(50),@LoginId varchar(50),@Password varchar(50),@DOB date,@Age VARCHAR(50),@Sex varchar(50),@PAN varchar(50),@NomineeName varchar(50),@NomineeRelation varchar(50),@NomineeDOB varchar(50),@ProductCode varchar(50),@PaymentOption varchar(50),@PaymentMode varchar(50),@Amount money,@AmountBalance money,@BankName varchar(50),@DDChequeNo varchar(50),@DDChequeDate date,@Payable varchar(50),@MemberAccNo varchar(50),@MemberBankName varchar(50),@MemberBranch varchar(50),@DepotCode varchar(50),@ReceiptNo varchar(50),@JoiningDate varchar(50),@CreatedBy varchar(50),@MemId Varchar(50) output,@msg VARCHAR(50) output)

AS BEGIN
INSERT INTO Members(ParentId, ThroughOverId,Leg,lleg,rleg,Title,FirstName,LastName,Type,FathersName,MothersName,MaritalStatus,Address ,City,State,Country,Pin,Std,Phone,Mobile,Email,LoginId,Password,DOB,Age,Sex,PAN,NomineeName,NomineeRelation,NomineeDOB,ProductCode,PaymentOption,PaymentMode,Amount,AmountBalance,BankName,DDChequeNo,DDChequeDate,Payable,MemberAccNo,MemberBankName,MemberBranch,DepotCode,ReceiptNo,JoiningDate,CreatedBy,MemId,msg)
values (@ParentId,@ThroughOverId,@Leg,@lleg,@rleg,@Title,@FirstName,@LastName,@Type,@FathersName,@MothersName,@MaritalStatus,@Address ,@City,@State ,@Country,@Pin,@Std,@Phone,@Mobile,@Email,@LoginId,@Password,@DOB,@Age,@Sex,@PAN,@NomineeName,@NomineeRelation,@NomineeDOB,@ProductCode,@PaymentOption,@PaymentMode,@Amount,@AmountBalance,@BankName,@DDChequeNo,@DDChequeDate,@Payable,@MemberAccNo,@MemberBankName,@MemberBranch,@DepotCode,@ReceiptNo,@JoiningDate,@CreatedBy,@MemId,@msg)
END

推荐答案

SELECT MemId, ParentId
FROM Members
ORDER BY MemId

DECLARE @FindParentsForMember INT;
SET  @FindParentsForMember = 757;
WITH Hierarchy(MemId,ParentId) 
AS(
     SELECT DISTINCT parent.MemId,parent.ParentId
     FROM Members parent
     WHERE parent.MemId = @FindParentsForMember
 
     UNION ALL
 
     SELECT child.MemId,child.ParentId
     FROM Members child
     INNER JOIN Hierarchy parent ON parent.ParentId = child.MemId
)
SELECT DISTINCT ParentId
FROM Hierarchy

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