我有2张桌子，如下所示：
表list_acc：
id_acc nama_acc parent_id_acc level_acc pattern_volume id_sat
------- ---------------- -------------- ---------- -------------- -----------
1 activities 1 (NULL) 1 (NULL) 1
2 sub activities 1 1 2 1 1
3 sub activities 2 1 2 1 1
4 sub activities 3 1 2 1 1
5 item sa 3 (1) 4 3 1 1
6 item sa 3 (2) 4 3 1 1
7 item sa 3 (3) 4 3 1 1
8 sub activities 4 1 2 1 1
9 activities 2 (NULL) 1 (NULL) 1
10 sub activities 1 9 2 1 2
11 sub activities 2 9 2 1 2
12 sub activities 3 9 2 1 2
13 sub activities 4 9 2 1 2
14 sub activities 5 9 2 1 2
表名义值：
id_nominal id_acc volume nominal id_user
---------- ------- ------ ----------- ---------
1 2 2.00 15000000.00 1
2 3 2.00 30000000.00 1
3 2 2.00 10000000.00 2
4 10 1.00 5000000.00 2
5 5 1.00 20000000.00 1
6 14 10.00 2000000.00 1
然后我通过加载所有list_acc表并基于名义表中的id_user并通过查询来连接两个表
SELECT
level_acc, list_acc.id_acc, parent_id_acc, name_acc, volume, nominal,
COALESCE(volume * nominal,0) AS total
FROM list_acc
LEFT JOIN
(SELECT * FROM nominal
WHERE id_user = '1') AS tbl_nominal_user
ON list_acc.`id_acc` = tbl_nominal_user.id_acc
ORDER BY list_acc.id_acc
所以结果如下：
level_acc id_acc parent_id_acc name_acc volume nominal total
--------- ------ ------------- ---------------- ------ ----------- ---------------
1 1 (NULL) activities 1 (NULL) (NULL) 0.0000
2 2 1 sub activities 1 2.00 15000000.00 30000000.0000
2 3 1 sub activities 2 2.00 30000000.00 60000000.0000
2 4 1 sub activities 3 (NULL) (NULL) 0.0000
3 5 4 item sa 3 (1) 1.00 20000000.00 20000000.0000
3 6 4 item sa 3 (2) (NULL) (NULL) 0.0000
3 7 4 item sa 3 (3) (NULL) (NULL) 0.0000
2 8 1 sub activities 4 (NULL) (NULL) 0.0000
1 9 (NULL) activities 2 (NULL) (NULL) 0.0000
2 10 9 sub activities 1 (NULL) (NULL) 0.0000
2 11 9 sub activities 2 (NULL) (NULL) 0.0000
2 12 9 sub activities 3 (NULL) (NULL) 0.0000
2 13 9 sub activities 4 (NULL) (NULL) 0.0000
2 14 9 sub activities 5 10.00 2000000.00 20000000.0000
然后我要从子活动3中计算总数，其中从总项目sa 3或父母编号4中获得总数。 然后，共有活动1和2，其中总数是从子活动总数中获得的
如何在mysql上编写查询？
预期结果是
level_acc id_acc parent_id_acc name_acc volume nominal total
--------- ------ ------------- ---------------- ------ ----------- ---------------
1 1 (NULL) activities 1 (NULL) (NULL) 110000000.0000
2 2 1 sub activities 1 2.00 15000000.00 30000000.0000
2 3 1 sub activities 2 2.00 30000000.00 60000000.0000
2 4 1 sub activities 3 (NULL) (NULL) 20000000.0000
3 5 4 item sa 3 (1) 1.00 20000000.00 20000000.0000
3 6 4 item sa 3 (2) (NULL) (NULL) 0.0000
3 7 4 item sa 3 (3) (NULL) (NULL) 0.0000
2 8 1 sub activities 4 (NULL) (NULL) 0.0000
1 9 (NULL) activities 2 (NULL) (NULL) 20000000.0000
2 10 9 sub activities 1 (NULL) (NULL) 0.0000
2 11 9 sub activities 2 (NULL) (NULL) 0.0000
2 12 9 sub activities 3 (NULL) (NULL) 0.0000
2 13 9 sub activities 4 (NULL) (NULL) 0.0000
2 14 9 sub activities 5 10.00 2000000.00 20000000.0000