mysql 递归查询所有父级名称

 

 得到 id为11的父分类id为10 

需要获取所有父分类的 id = 11  

SELECT T2.id, T2.name
FROM (
SELECT
@r AS _id,
(SELECT @r := parent_id FROM patrol_store_classify WHERE id = _id) AS parent_id,
@l := @l + 1 AS lvl
FROM
(SELECT @r := 11, @l := 0) vars,
patrol_store_classify h
WHERE @r <> 0) T1
JOIN patrol_store_classify T2
ON T1._id = T2.id
ORDER BY T1.lvl DESC;

得到自己想要的结果 id为11 的所有父分类