我的层次结构表具有组织级别的父子关系。其他表具有层次结构表中最低级别子级的帐户余额。 我需要找到从顶级子级到最低子级的所有层次结构。 所有顶级parent_node的顶级父级都为“ ****”。请提出蜂巢查询以解决此问题。
输入表：
层次结构表：
+---------------+----------------+
|parent_node_id | child_node_id |
+---------------+----------------+
| C1 | C11 |
+---------------+----------------+
| C11 | C12 |
+---------------+----------------+
| C12 | 123 |
+---------------+----------------+
| C12 | 456 |
+---------------+----------------+
| P1 | C1 |
+---------------+----------------+
| P1 | C2 |
+---------------+----------------+
| P2 | C3 |
+---------------+----------------+
Account Balance:
+-------+----------+
| node | balance |
+-------+----------+
| 123 | 100 |
+-------+----------+
| 456 | 150 |
+-------+----------+
| C2 | 400 |
+-------+----------+
| C3 | 200 |
+-------+----------+
输出数据：
平整的层次结构：
+---------------+-------------+---------+----------+----------+
|Parent_node_id | Level 1 | Level 2 | Level 2 | Level3 |
+---------------+-------------+---------+----------+----------+
| P1 | C1 | C11 | C12 | 123 |
+---------------+-------------+---------+----------+----------+
| P1 | C1 | C11 | C12 | 456 |
+---------------+-------------+---------+----------+----------+
| P1 | C2 | NULL | NULL | NULL |
+---------------+-------------+---------+----------+----------+
| P2 | C3 | NULL | NULL | NULL |
+---------------+-------------+---------+----------+----------+
从最小的孩子到另一个孩子的平衡
+-------+----------+
| node | balance |
+-------+----------+
| 123 | 100 |
+-------+----------+
| 456 | 150 |
+-------+----------+
| C12 | 250 |
+-------+----------+
| C11 | 250 |
+-------+----------+
| C1 | 250 |
+-------+----------+
| P1 | 650 |
+-------+----------+
| C2 | 200 |
+-------+----------+
| P2 | 200 |
+-------+----------+