MySQL 8的递归查询

先创建一个表，数据如下

SELECT * FROM t_city WHERE parent_id = '430100';

第一种情况：自底往上递归查询

WITH RECURSIVE cte_city AS(

SELECT * FROM t_city WHERE NAME = '宁乡市'

UNION ALL

SELECT u.* FROM t_city u, cte_city t WHERE u.id = t.parent_id

)

SELECT * FROM cte_city;

第二种情况：从下向下查询

WITH RECURSIVE cte_city AS(

SELECT * FROM t_city WHERE NAME = '长沙市'

UNION ALL

SELECT u.* FROM t_city u, cte_city t WHERE u.parent_id = t.id

)

SELECT * FROM cte_city;

标签：宁乡,city,递归,查询,cte,MySQL,WHERE,id,SELECT
来源： https://www.cnblogs.com/javafan/p/16201791.html