Problem MYSQL Query join with output want - mysql

Question

I has problem with MySql query. I has try many time for query, but still not get what I want. Maybe anyone can help my problem.
This is structure table and what output I want :
This is whats i try, but when #IDPERIODS=2, thats not show i want :
SET #IDPERIODS:=2;
SELECT billing.*
FROM _t_data_user
LEFT JOIN (
SELECT user_id as iduser,
IF(a.id_bill_type=b.id_bill_type,a.id_setting_bill,ifnull(b.id_setting_bill,a.id_setting_bill)) as idsettingbill,
id_user_group as group_user,
IF(a.id_bill_type=b.id_bill_type,a.id_bill_type, ifnull(b.id_bill_type,a.id_bill_type)) as idbilltype,
IF(a.id_bill_type=b.id_bill_type,a.id_period, ifnull(b.id_period,a.id_period)) as period,
IF(a.id_bill_type=b.id_bill_type,a.amount_bill, ifnull(b.amount_bill,a.amount_bill)) as amount_billing
FROM _t_data_user
LEFT JOIN _t_setting_bill_user b ON b.id_group_user=id_user_group and b.id_period=#IDPERIODS
LEFT JOIN _t_setting_bill_user a ON a.id_user=user_id and a.id_period=#IDPERIODS
WHERE IFNULL(a.id_period, b.id_period) = #IDPERIODS
) billing ON iduser = user_id
WHERE period = #IDPERIODS
GROUP BY user_id, idbilltype
This MySql table scheme :
Table structure and sample data:
CREATE TABLE `_t_data_user` (
`user_id` int(4) unsigned NOT NULL AUTO_INCREMENT,
`id_user_group` int(4) DEFAULT NULL,
PRIMARY KEY (`user_id`)
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;
INSERT INTO `_t_data_user` (`user_id`, `id_user_group`)
VALUES
(1, 1),
(2, 1),
(3, 1),
(4, 2);
CREATE TABLE `_t_setting_bill_user` (
`id_setting_bill` int(11) unsigned NOT NULL AUTO_INCREMENT,
`id_group_user` int(4) DEFAULT NULL,
`id_user` int(4) DEFAULT NULL,
`id_period` int(4) DEFAULT NULL,
`id_bill_type` int(4) DEFAULT NULL,
`amount_bill` bigint(20) DEFAULT NULL,
PRIMARY KEY (`id_setting_bill`)
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8;
INSERT INTO `_t_setting_bill_user`
(`id_setting_bill`, `id_group_user`, `id_user`,
`id_period`, `id_bill_type`, `amount_bill`)
VALUES
(1, 1, 0, 1, 1, 1000),
(2, 1, 0, 1, 2, 500),
(3, 0, 1, 1, 1, 900),
(4, 0, 1, 2, 1, 1000),
(5, 1, 0, 2, 2, 500),
(6, 2, 0, 1, 1, 1100);

Answer 1

This gives you the raw data you want:
SELECT *
FROM
setting_bill_user s
JOIN data_user d
ON
s.id_group_user = d.id_user_group OR
s.id_user = d.user_id
Look:
You just have to choose and alias the columns appropriately
I can't work out why your desired output is missing the 1000 row for user id 1/setting bill 1, but I'm sure you can add some WHERE clause to cover that, whatever the reason may be

Answer 2

It seems that removing a few parts from the subquery will return the result that you're looking for:
SELECT billing.*
FROM _t_data_user
JOIN (
SELECT user_id AS iduser,
IF(a.id_bill_type=b.id_bill_type,a.id_setting_bill,IFNULL(b.id_setting_bill,a.id_setting_bill)) AS idsettingbill,
id_user_group AS group_user,
IF(a.id_bill_type=b.id_bill_type,a.id_bill_type, IFNULL(b.id_bill_type,a.id_bill_type)) AS idbilltype,
IF(a.id_bill_type=b.id_bill_type,a.id_period, IFNULL(b.id_period,a.id_period)) AS period,
IF(a.id_bill_type=b.id_bill_type,a.amount_bill, IFNULL(b.amount_bill,a.amount_bill)) AS amount_billing
FROM _t_data_user t
LEFT JOIN _t_setting_bill_user b ON b.id_group_user=t.id_user_group
LEFT JOIN _t_setting_bill_user a ON a.id_user=t.user_id
WHERE IFNULL(a.id_period, b.id_period) = #IDPERIODS
) billing ON iduser = user_id
GROUP BY user_id, idbilltype;
I've removed AND id_period=#IDPERIODS of the ON condition in both of LEFT JOIN in the subquery.
I've changed LEFT JOIN to JOIN in the outer query because you were doing LEFT JOIN with a WHERE condition on the data from the right reference (the subquery). Which, in practice is just a normal JOIN so LEFT JOIN is unnecessary. Therefore, I also removed WHERE period = #IDPERIODS from the outer query.
And that's it. Other than that, most of your original query structures are still intact.
Demo fiddle

Answer 3

Halo bro desugha,
I think you should make it on programatic way, you should re-arrange and create object to combine data from data_user INTO setting_bill_user
SELECT compacted_usr_bill.* FROM (
SELECT billusr.*,
usr.user_id AS usr_id_usr, usr.id_user_group AS usr_id_group
FROM (
SELECT bill.id_setting_bill,
CASE
WHEN bill.id_user > 0 AND bill.id_group_user = 0 THEN bill.id_user
WHEN bill.id_user = 0 AND bill.id_group_user > 0 THEN bill.id_group_user
ELSE bill.id_user
END AS grouped_id_usr,
bill.id_period, bill.id_bill_type, bill.amount_bill
FROM _t_setting_bill_user AS bill)
AS billusr
LEFT JOIN _t_data_user AS usr
ON billusr.grouped_id_usr IN(usr.user_id, usr.id_user_group)
) AS compacted_usr_bill
This query will combine them, you can filter again with Grouping or Programmatic way