我尝试查询但结果总是一样，请帮我查一下查询中的错误
Penjualan
listViewController = [[CBListViewController alloc] initWithStyle:UITableViewStylePlain];
bookmarkController = [[CBBookmarksViewController alloc] initWithStyle:UITableViewStylePlain];
settingsController = [[CBActivityViewController alloc] init ];
searchController = [[CBSearchViewController alloc] initWithNibName:@"CBSearchViewController" bundle:nil];
nearbyController = [[CBViewOnMapViewController alloc] init ];
UINavigationController *bNavigationController = [[UINavigationController alloc] initWithRootViewController:bookmarkController];
self.navigationControllerForBookmark = bNavigationController;
UITabBarItem *tab2=[[UITabBarItem alloc]init];
tab2.image = [[UIImage imageNamed:@"bookmark.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
tab2.selectedImage = [[UIImage imageNamed:@"bookmark_active.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
tab2.imageInsets = UIEdgeInsetsMake(5, 0, -5, 0);
navigationControllerForBookmark.tabBarItem = tab2;
UINavigationController *cNavigationController = [[UINavigationController alloc] initWithRootViewController:settingsController];
self.navigationControllerForSettings = cNavigationController;
UITabBarItem *tab3=[[UITabBarItem alloc]init];
tab3.image = [[UIImage imageNamed:@"activites.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
tab3.selectedImage = [[UIImage imageNamed:@"activites_active.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
tab3.imageInsets = UIEdgeInsetsMake(5, 0, -5, 0);
navigationControllerForSettings.tabBarItem = tab3;
UINavigationController *dNavigationController = [[UINavigationController alloc] initWithRootViewController:searchController];
self.navigationControllerForSearch = dNavigationController;
UITabBarItem *tab4=[[UITabBarItem alloc]init];
tab4.image = [[UIImage imageNamed:@"Search.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
tab4.selectedImage = [[UIImage imageNamed:@"Search_active.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
self.navigationController.tabBarItem = tab4;
tab4.imageInsets=UIEdgeInsetsMake(5, 0, -5, 0);
navigationControllerForSearch.tabBarItem=tab4;
UINavigationController *eNavigationController = [[UINavigationController alloc] initWithRootViewController:nearbyController];
self.navigationControllerForNearby = eNavigationController;
UITabBarItem *tab5=[[UITabBarItem alloc]init];
tab5.image = [[UIImage imageNamed:@"nearby.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
tab5.selectedImage = [[UIImage imageNamed:@"nearby_active.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
self.navigationController.tabBarItem = tab5;
tab5.imageInsets = UIEdgeInsetsMake(5, 0, -5, 0);
navigationControllerForNearby.tabBarItem = tab5;
[navigationControllerForNearby.navigationBar setBackgroundImage:[UIImage imageNamed:@"headerBar"] forBarMetrics:UIBarMetricsDefault];
UINavigationController *aNavigationController = [[UINavigationController alloc] initWithRootViewController:listViewController];
self.navigationController = aNavigationController;
UITabBarItem *tab1=[[UITabBarItem alloc]init];
tab1.image = [[UIImage imageNamed:@"review.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
tab1.selectedImage = [[UIImage imageNamed:@"review_active.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
tab1.imageInsets = UIEdgeInsetsMake(5, 0, -5, 0);
navigationController.tabBarItem = tab1;
[[UITabBar appearance] setBarTintColor:GRAY_COLOR];
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:navigationController, navigationControllerForNearby, navigationControllerForSearch, navigationControllerForBookmark, navigationControllerForSettings, nil];
self.window.rootViewController = self.tabBarController;
Pelunasan
+--------+----------------+------+------------+----------+----------+-------------+-----------+-------------+----------------+
| oid | client | qty | b_digital | b_large | b_kotak | b_laminate | b_potong | no_invoice | invoice_date |
+--------+----------------+------+------------+----------+----------+-------------+-----------+-------------+----------------+
| 41468 | Budi | 19 | 6000 | 0 | 0 | 0 | 500 | 125596 | 9/7/2015 11:00 |
| 41467 | Budi | 6 | 4000 | 0 | 0 | 0 | 0 | 125596 | 9/7/2015 11:00 |
| 41466 | Budi | 1 | 5500 | 0 | 0 | 0 | 0 | 125596 | 9/7/2015 11:00 |
| 41524 | mega Utama | 1 | 5500 | 0 | 0 | 0 | 0 | 125640 | 9/7/2015 8:00 |
| 41523 | Berkah Surya | 24 | 4000 | 0 | 0 | 750 | 0 | 125638 | 9/7/2015 8:00 |
| 41522 | Maximize Play | 2 | 10000 | 0 | 0 | 0 | 0 | 125639 | 9/7/2015 8:00 |
+--------+----------------+------+------------+----------+----------+-------------+-----------+-------------+----------------+
结果查询（错误结果）
+------+-------------+-----------------+---------+
| pid | no_invoice | pay_date | tot_pay |
+------+-------------+-----------------+---------+
| 1 | 125596 | 9/7/2015 9:40 | 2500 |
| 2 | 125596 | 9/7/2015 9:41 | 5000 |
| 3 | 125640 | 9/7/2015 10:31 | 2000 |
| 4 | 125639 | 9/7/2015 10:31 | 5000 |
| 5 | 125639 | 9/7/2015 10:31 | 2000 |
+------+-------------+-----------------+---------+
我想要的结果（正确结果）
+-------------+----------------+-----------+--------------+------------+-----------+
| no_invoice | client | subtotal | tgl_invoice | total_byr | tgl_bayar |
+-------------+----------------+-----------+--------------+------------+-----------+
| 125640 | mega Utama | 5500 | 9/7/2015 | 2000 | 9/7/2015 |
| 125639 | Maximize Play | 20000 | 9/7/2015 | 7000 | 9/7/2015 |
| 125638 | Berkah Surya | 114000 | 9/7/2015 | NULL | NULL |
| 125596 | Budi | 153000 | 9/7/2015 | 22500 | 9/7/2015 |
+-------------+----------------+-----------+--------------+------------+-----------+
此处SQL数据：https://userscloud.com/mep01cocf2bt
+--------+----------------+------+------------+----------+----------+-------------+-----------+-------------+----------------+
| oid | client | qty | b_digital | b_large | b_kotak | b_laminate | b_potong | no_invoice | invoice_date |
+--------+----------------+------+------------+----------+----------+-------------+-----------+-------------+----------------+
| 41468 | Budi | 19 | 6000 | 0 | 0 | 0 | 500 | 125596 | 9/7/2015 11:00 |
| 41467 | Budi | 6 | 4000 | 0 | 0 | 0 | 0 | 125596 | 9/7/2015 11:00 |
| 41466 | Budi | 1 | 5500 | 0 | 0 | 0 | 0 | 125596 | 9/7/2015 11:00 |
| 41524 | mega Utama | 1 | 5500 | 0 | 0 | 0 | 0 | 125640 | 9/7/2015 8:00 |
| 41523 | Berkah Surya | 24 | 4000 | 0 | 0 | 750 | 0 | 125638 | 9/7/2015 8:00 |
| 41522 | Maximize Play | 2 | 10000 | 0 | 0 | 0 | 0 | 125639 | 9/7/2015 8:00 |
+--------+----------------+------+------------+----------+----------+-------------+-----------+-------------+----------------+
＆＃34; total_byr＆＃34;
的问题答案 0 :(得分：0)
select a.no_invoice, a.client,
(sum(a.qty*(a.b_digital+a.b_large+a.b_kotak+a.b_laminate+a.b_potong))) AS subtotal,
date_format(a.invoice_date,'%d/%m/%Y') as tgl_invoice,
(select sum(b.tot_pay) from pelunasan as b where b.no_invoice=a.no_invoice) as total_byr,
(select distinct date_format(c.pay_date,'%d/%m/%Y') from pelunasan as c where c.no_invoice=a.no_invoice) as tgl_bayar
from penjualan as a
group by a.no_invoice
order by a.no_invoice desc