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  • 复制新增树状数据_ParentID也需要更新

    CREATE TABLE TreeShip(
     [ID] uniqueidentifier PRIMARY KEY NOT NULL,
     [Name] [nvarchar](50) NULL,
     [Remark] [nvarchar](500) NULL,
     [ParentID] uniqueidentifier not null
    )

    GO

    INSERT INTO TreeShip(ID,Name,Remark,ParentID) values ('47B9AF56-32D8-4561-8096-15D832C47B26','上海一中','源数据','00000000-0000-0000-0000-000000000000')
    INSERT INTO TreeShip(ID,Name,Remark,ParentID) values ('64F41586-449A-464B-BB48-FF13FBC492BC','上海二中','源数据','00000000-0000-0000-0000-000000000000')
    INSERT INTO TreeShip(ID,Name,Remark,ParentID) values (newid(),'上海三中','源数据','00000000-0000-0000-0000-000000000000')

    INSERT INTO TreeShip(ID,Name,Remark,ParentID) values (newid(),'上海一中一班','源数据','47B9AF56-32D8-4561-8096-15D832C47B26')
    INSERT INTO TreeShip(ID,Name,Remark,ParentID) values (newid(),'上海一中二班','源数据','47B9AF56-32D8-4561-8096-15D832C47B26')
    INSERT INTO TreeShip(ID,Name,Remark,ParentID) values (newid(),'上海一中三班','源数据','47B9AF56-32D8-4561-8096-15D832C47B26')
    INSERT INTO TreeShip(ID,Name,Remark,ParentID) values (newid(),'上海二中一班','源数据','64F41586-449A-464B-BB48-FF13FBC492BC')
    INSERT INTO TreeShip(ID,Name,Remark,ParentID) values (newid(),'上海二中二班','源数据','64F41586-449A-464B-BB48-FF13FBC492BC')

    GO

    DECLARE @TreeType nvarchar(20)
    SET @TreeType = '新数据'
    BEGIN
     --创建一个临时表,记录ID的变化
     SELECT ID AS FromID,newid() AS ToID INTO #TEMP FROM TreeShip WHERE Remark ='源数据'
     --插入相应的数据
     INSERT INTO TreeShip(ID,Name,Remark,ParentID)
     SELECT M1.ToID,A.Name,@TreeType,ISNULL(M2.ToID,'00000000-0000-0000-0000-000000000000')
     FROM TreeShip A
     INNER JOIN #TEMP M1 ON A.ID = M1.FromID
     LEFT JOIN #TEMP M2 ON A.ParentID = M2.FromID
     
     DROP TABLE #TEMP 
    END

    GO

    SELECT * FROM TreeShip  ORDER BY REMARK ,PARENTID,NAME

    --哥哥们,若是觉得好就给个好评呀,写的很辛苦的。

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  • 原文地址:https://www.cnblogs.com/pnljs/p/3195999.html
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