Question

我希望删除select语句返回的结果，因为我这样做是因为我在表之间有关系，如果我从最顶层的表中删除，那么其他表中的子行也必须删除。

有人可以帮我纠正这个存储过程吗？

ALTER proc [dbo].[storedprocname] 
    (@Parameter uniqueidentifier = '00000000-0000-0000-0000-000000000000')
AS BEGIN
    DELETE FROM TableOne 
    WHERE IDOne IN
        (SELECT
           IDOne,
           DescOne, IndexOne,
           IDTwo,
           QuestionTwo, ControlTypeTwo, IndexTwo,
           IDThree,
           DescThree, IndexThree,
           QuestionFour,
           OptionFour
    FROM
           TableOne
        INNER JOIN 
           TableTwo ON TableTwo.CatID = TableOne.IDOne
        INNER JOIN 
           TableThree ON TableThree.Question = TableTwo.IDTwo
        LEFT OUTER JOIN
           TableFour ON TableFour.Question = TableThree.IDThree
        WHERE
           TableOne.IDOne = @Parameter)
END

Answer 1

ALTER proc [dbo].[storedprocname] 
  (@Parameter uniqueidentifier = '00000000-0000-0000-0000-000000000000')
AS BEGIN
  DELETE FROM TableOne 
    WHERE IDOne IN
      (SELECT
         IDOne
       FROM
         TableOne
       INNER JOIN 
         TableTwo ON TableTwo.CatID = TableOne.IDOne
       INNER JOIN 
         TableThree ON TableThree.Question = TableTwo.IDTwo
       LEFT OUTER JOIN
         TableFour ON TableFour.Question = TableThree.IDThree
       WHERE
         TableOne.IDOne = @Parameter)
END

Answer 2

由于您要删除IDOne在可能值列表中的所有行 - 然后您需要确保IN (...)之后的子查询也返回一列可用于比较！毕竟，您无法将单个IDOne值与您当前返回的整个列列表进行比较....

尝试这样的事情：

ALTER proc [dbo].[storedprocname] 
    (@Parameter uniqueidentifier = '00000000-0000-0000-0000-000000000000')
AS BEGIN
    DELETE FROM TableOne 
    WHERE IDOne IN
        (SELECT
           IDOne
         FROM
           TableOne
        INNER JOIN 
           TableTwo ON TableTwo.CatID = TableOne.IDOne
        INNER JOIN 
           TableThree ON TableThree.Question = TableTwo.IDTwo
        LEFT OUTER JOIN
           TableFour ON TableFour.Question = TableThree.IDThree
        WHERE
           TableOne.IDOne = @Parameter)
END

我不知道（你的问题太模糊，不够清楚）是否真的需要子查询中的所有JOIN ....你可能需要根据你的要求进行调整。 / p>

SQL Server存储过程删除语句

2 个答案: