MySQL单个地理区域最多10行_Mysql

MySQL单个地理区域最多10行

mysql

MySQL单个地理区域最多10行,mysql,Mysql,我的mysql数据库有问题这个表有122行和122列OrderTco和OrderCode OrderTco是订单的原产地地理区域，OrderCode是相同地理区域可以重复的订单代码我需要从这个表中提取单个地理区域最多10行的数据我需要这个输出，其中对于区域A1提取所有行，因为我只有9行，对于区域B1和区域C1，前10行： +-----+----------+-----------+ | ID | OrderTco | OrderCode | +-----+----------+-----

我的mysql数据库有问题

这个表有122行和122列OrderTco和OrderCode

OrderTco是订单的原产地地理区域，OrderCode是相同地理区域可以重复的订单代码

我需要从这个表中提取单个地理区域最多10行的数据

我需要这个输出，其中对于区域A1提取所有行，因为我只有9行，对于区域B1和区域C1，前10行：

+-----+----------+-----------+
| ID  | OrderTco | OrderCode |
+-----+----------+-----------+
|   1 | A1       |  47421842 |
|   2 | A1       |  48062487 |
|   3 | A1       |  48889676 |
|   4 | A1       |  50384199 |
|   5 | A1       |  50887328 |
|   6 | A1       |  50918700 |
|   7 | A1       |  51248220 |
|   8 | A1       |  51794088 |
|   9 | A1       |  90817292 |
|  10 | B1       |  41771826 |
|  11 | B1       |  44723830 |
|  12 | B1       |  45483247 |
|  13 | B1       |  46148815 |
|  14 | B1       |  46514834 |
|  15 | B1       |  46834766 |
|  16 | B1       |  46834770 |
|  17 | B1       |  47615351 |
|  18 | B1       |  47615653 |
|  19 | B1       |  47802697 |
|  60 | C1       |  42156626 |
|  61 | C1       |  46156395 |
|  62 | C1       |  47099964 |
|  63 | C1       |  47737295 |
|  64 | C1       |  48672260 |
|  65 | C1       |  49048345 |
|  66 | C1       |  49370148 |
|  67 | C1       |  50781626 |
|  68 | C1       |  51580145 |
|  69 | C1       |  51580146 |
+-----+----------+-----------+

我想到了按OrderTco、OrderCode和Limit 10进行分组，但我无法获得输出

我的桌子在下面

任何帮助都将不胜感激，提前谢谢

DROP TABLE IF EXISTS `dotable`;
CREATE TABLE `dotable` (
  `ID` int(11) NOT NULL AUTO_INCREMENT,
  `OrderTco` char(6) DEFAULT NULL,
  `OrderCode` int(11) DEFAULT NULL,
  PRIMARY KEY (`ID`)
) ENGINE=MyISAM AUTO_INCREMENT=123 DEFAULT CHARSET=latin1;


INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('1', 'A1', '47421842');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('2', 'A1', '48062487');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('3', 'A1', '48889676');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('4', 'A1', '50384199');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('5', 'A1', '50887328');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('6', 'A1', '50918700');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('7', 'A1', '51248220');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('8', 'A1', '51794088');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('9', 'A1', '90817292');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('10', 'B1', '41771826');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('11', 'B1', '44723830');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('12', 'B1', '45483247');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('13', 'B1', '46148815');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('14', 'B1', '46514834');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('15', 'B1', '46834766');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('16', 'B1', '46834770');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('17', 'B1', '47615351');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('18', 'B1', '47615653');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('19', 'B1', '47802697');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('20', 'B1', '48069101');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('21', 'B1', '48215307');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('22', 'B1', '48287092');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('23', 'B1', '48361996');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('24', 'B1', '48610861');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('25', 'B1', '48881052');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('26', 'B1', '48990004');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('27', 'B1', '49170385');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('28', 'B1', '49810778');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('29', 'B1', '49864962');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('30', 'B1', '50093254');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('31', 'B1', '50150294');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('32', 'B1', '50151510');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('33', 'B1', '50669799');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('34', 'B1', '50948841');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('35', 'B1', '51096692');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('36', 'B1', '51096793');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('37', 'B1', '51848609');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('38', 'B1', '52018758');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('39', 'B1', '52129746');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('40', 'B1', '89318652');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('41', 'B1', '89969871');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('42', 'B1', '89969874');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('43', 'B1', '89969885');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('44', 'B1', '89969887');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('45', 'B1', '89984300');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('46', 'B1', '90642243');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('47', 'B1', '90642246');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('48', 'B1', '90656056');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('49', 'B1', '90681042');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('50', 'B1', '90686901');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('51', 'B1', '90687088');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('52', 'B1', '90694120');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('53', 'B1', '90771866');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('54', 'B1', '90829027');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('55', 'B1', '90866489');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('56', 'B1', '90938371');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('57', 'B1', '90949259');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('58', 'B1', '91125485');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('59', 'B1', '91174802');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('60', 'C1', '42156626');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('61', 'C1', '46156395');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('62', 'C1', '47099964');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('63', 'C1', '47737295');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('64', 'C1', '48672260');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('65', 'C1', '49048345');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('66', 'C1', '49370148');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('67', 'C1', '50781626');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('68', 'C1', '51580145');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('69', 'C1', '51580146');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('70', 'C1', '51590131');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('71', 'C1', '51593663');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('72', 'C1', '52110407');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('73', 'C1', '88959568');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('74', 'C1', '89107949');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('75', 'C1', '89559925');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('76', 'C1', '89822330');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('77', 'C1', '89853401');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('78', 'C1', '89875109');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('79', 'C1', '90143788');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('80', 'C1', '90147121');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('81', 'C1', '90261952');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('82', 'C1', '90262117');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('83', 'C1', '90268972');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('84', 'C1', '90349287');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('85', 'C1', '90350763');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('86', 'C1', '90354055');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('87', 'C1', '90388795');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('88', 'C1', '90424846');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('89', 'C1', '90498839');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('90', 'C1', '90503670');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('91', 'C1', '90508353');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('92', 'C1', '90518025');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('93', 'C1', '90520214');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('94', 'C1', '90546077');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('95', 'C1', '90546078');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('96', 'C1', '90554790');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('97', 'C1', '90554800');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('98', 'C1', '90565102');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('99', 'C1', '90571253');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('100', 'C1', '90631905');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('101', 'C1', '90631971');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('102', 'C1', '90656093');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('103', 'C1', '90660564');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('104', 'C1', '90669061');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('105', 'C1', '90669309');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('106', 'C1', '90685269');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('107', 'C1', '90687702');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('108', 'C1', '90767056');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('109', 'C1', '90767745');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('110', 'C1', '90768541');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('111', 'C1', '90902399');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('112', 'C1', '90902528');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('113', 'C1', '90908367');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('114', 'C1', '90908789');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('115', 'C1', '90929476');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('116', 'C1', '90929477');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('117', 'C1', '90929718');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('118', 'C1', '91038039');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('119', 'C1', '91056217');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('120', 'C1', '91056340');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('121', 'C1', '91087005');
INSERT INTO `dotable` (OrderTco, OrderCode) VALUES ('122', 'C1', '91139612');

这里有一种方法：

select dt.*
from dotable dt
where (select count(*)
       from dotable dt2
       where dt2.OrderTco = dt. OrderTco and
             dt2.id <= dt.id
      ) <= 10

您也可以使用变量执行此操作，但是对于这样一个小的表，上面的查询应该很好。

谢谢您的帮助。我尝试过你的方法，但是在输出中我有95行而不是29行，并且没有A1区域的行。。。。