MySQL 根据 部门ID 查询当前部门&部门的所有上级部门

SQL语句

替换掉这3个字段就可以直接在MySQL运行。id = 部门id、pid = 上级id、name = 部门名称

SELECT T2.id, T2.name, T1.lvl as level
        FROM (
        SELECT
        @r AS _id,
        (SELECT @r := pid FROM '部门表名' WHERE id = _id) AS pid,
        @l := @l + 1 AS lvl
        FROM
        (SELECT @r := #{部门id}, @l := 0) vars,
        '部门表名' h
        WHERE @r != 0) T1
        JOIN '部门表名' T2
        ON T1._id = T2.id
        ORDER BY T1.lvl DESC