1.多級 cte 查詢示例。

with cte as (select pageid from cm_bookpage ) , cte2 as (select pageid, 2 as content from cte ) select * from cte2

2. cte 遞歸查詢文章標題層級，3872某一葉子節點，要查詢出所有上級目錄并排序返回。

with cte as (select pageid,bookid,title,parentpageid,1 as orderidfrom cm_bookpage where pageid = 3872 union all select a.pageid,a.bookid,a.title,a.parentpageid,(cte.orderid+1) as orderidfrom cm_bookpage a inner join cte on a.pageid = cte.parentpageid ) select * from cte order by orderid desc

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轉載于:https://www.cnblogs.com/nanfei/p/9030034.html

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