Question

使用MS SQL存储过程我收到以下错误“无效的列名称NavigationID”。

有谁能让我知道我做错了什么？

DECLARE @NavigationID INT
SET @NavigationID = 5 

CREATE TABLE #tmp (NavigationID int , ParentID int);
INSERT INTO #tmp SELECT NavigationID, ParentID FROM Nav;

    WITH Parent AS
    (
        SELECT NavigationID, ParentID FROM #tmp WHERE NavigationID = @NavigationID
        UNION ALL 
        SELECT t.NavigationID, t.ParentID FROM Parent
        INNER JOIN #tmp t ON t.NavigationID =  Parent.ParentID
    )

    SELECT NavigationID FROM ParentID
    WHERE NavigationID <> @NavigationID;

Answer 1

使用您发布的代码即可获得。

Msg 208, Level 16, State 1, Line 10
Invalid object name 'ParentID'.

将FROM ParentID更改为FROM Parent。

您还需要表NavigationID中的列Nav。

试试这个：

declare @Nav table(NavigationID int, ParentID int)

insert into @Nav
select 1, null union all
select  2, 1 union all
select  3, 1 union all
select   4, 3 union all
select   5, 3 union all
select 6, null union all
select  7, 6

declare @NavigationID int;
set @NavigationID = 5;


with Parent as
(
  select NavigationID,
         ParentID
  from @Nav
  where NavigationID = @NavigationID
  union all
  select t.NavigationID, t.ParentID
  from Parent
    inner join @Nav t
      on t.NavigationID =  Parent.ParentID
)
select NavigationID
from Parent
where NavigationID <> @NavigationID;

结果：

NavigationID
------------
3
1

将@Nav替换为您正在使用的任何表。 @Nav仅在此处，以便可以复制和测试此代码。

SP帮助（无效的列名称）

1 个答案: