数据表的结构: id name parent_id --------------------------- Home 0 About 1 Contact 1 Legal 2 Privacy 4 Products 1 Support 1 SELECT T2.id, T2.name FROM ( SELECT @r AS _id, (SELECT @r := parent_id FROM table1 WHERE id = _id) AS parent_id FROM (SELECT @r := 5, @l := 0) vars, --查询id为5的所有上级 table1 h WHERE @r <> 0) T1 JOIN table1 T2 ON T1._id = T2.id
id name parent_id
---------------------------
Home 0
About 1
Contact 1
Legal 2
Privacy 4
Products 1
Support 1 SELECT T2.id, T2.name
FROM (
SELECT
@r AS _id,
(SELECT @r := parent_id FROM table1 WHERE id = _id) AS parent_id
FROM
(SELECT @r := 5, @l := 0) vars, --查询id为5的所有上级
table1 h
WHERE @r <> 0) T1
JOIN table1 T2
ON T1._id = T2.id