Question

我在这里找到了一个有趣的递归查询（http://beyondrelational.com/modules/2/blogs/28/posts/10486/recursive-cte-and-ordering-of-the-hierarchical-result.aspx）并且我适应了我的需求，但是没有用。

以下是代码：

WITH cte AS (
    SELECT 0 AS lvl, collectionID, collectionName, parentCollectionID, CAST(collectionID AS VARCHAR(128)) AS Sort
           FROM collections WHERE parentCollectionID IS NULL
    UNION ALL
    SELECT p.lvl + 1, c.collectionID, c.collectionName, c.parentCollectionID, CAST(p.Sort + '/' + CAST(c.collectionID AS VARCHAR) AS VARCHAR(128))
          FROM collections c
          INNER JOIN cte p ON p.collectionID = c.parentCollectionID
        )
SELECT 
collectionID, 
SPACE(lvl * 4) + collectionName AS collectionName, 
Sort,
parentCollectionID 
FROM cte ORDER BY Sort;

我收到此消息：“内核错误：靠近”WITH“：语法错误”

拜托，我要做些什么来解决它？我正在使用SQLIte 3.8.2

SQLITE递归查询

0 个答案: