需要解决
在bulldozer_overview表中,有两个字段begin_time
、entry_time
,我希望按照这两个时间字段排序,有的时候begin_time是null有的时候entry_time是null
假如
id | begin_time | entry_time |
---|
1 | 01-01 | null |
2 | null | 01-02 |
3 | 01-05 | null |
4 | null | 01-04 |
5 | 01-03 | null |
希望得到的结果是
id | begin_time | entry_time |
---|
1 | 01-05 | null |
2 | null | 01-04 |
3 | 01-03 | null |
4 | null | 01-02 |
5 | 01-01 | null |
表结构和数据
-- ----------------------------
-- Table structure for bulldozer_overview
-- ----------------------------
DROP TABLE IF EXISTS `bulldozer_overview`;
CREATE TABLE `bulldozer_overview` (
`id` int(11) NOT NULL AUTO_INCREMENT COMMENT '车辆ID',
`license_number` varchar(50) NOT NULL COMMENT '车牌号',
`data_source` int(2) DEFAULT '0' COMMENT '数据来源',
`create_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
`update_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
`begin_time` varchar(50) DEFAULT NULL COMMENT '出发时间',
`end_time` varchar(50) DEFAULT NULL COMMENT '到达时间',
`elimination` varchar(50) DEFAULT NULL COMMENT '消纳地点',
`rubbish_type` varchar(50) DEFAULT NULL COMMENT '垃圾类型',
`order_number` varchar(100) DEFAULT NULL COMMENT '运单编号',
`site_name` varchar(50) DEFAULT NULL COMMENT '工地名称',
`site_area` varchar(20) DEFAULT NULL COMMENT '工地所属区',
`elimination_area` varchar(20) DEFAULT NULL COMMENT '消纳地点所属区',
`transport_name` varchar(50) DEFAULT NULL COMMENT '运输企业',
`transport_area` varchar(20) DEFAULT NULL COMMENT '运输企业所属区',
`transport_volume` float(10,2) DEFAULT NULL COMMENT '运输量(吨)',
`driving_status` int(11) DEFAULT '2' COMMENT '车辆行驶状态',
`entry_time` timestamp NULL DEFAULT NULL COMMENT '进消纳厂时间',
`flag_delete` int(2) DEFAULT '0' COMMENT '删除标识',
`driving_type` int(2) DEFAULT '0' COMMENT '行驶状态',
`plant_name` varchar(100) DEFAULT NULL COMMENT '消纳厂名称',
`license_path` varchar(300) DEFAULT NULL COMMENT '车牌抓拍图片路径',
PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=109 DEFAULT CHARSET=utf8 COMMENT='渣土车出入总览表';
-- ----------------------------
-- Records of bulldozer_overview
-- ----------------------------
BEGIN;
INSERT INTO `bulldozer_overview` VALUES (0, '京Q89HX3', 0, '2021-04-08 16:48:36', '2021-06-03 16:33:25', '2021-03-20 10:59:10', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, NULL, 0, 0, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (1, '京MBE065', 0, '2021-04-08 16:48:36', '2021-06-03 16:33:29', '2021-03-21 10:59:10', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, NULL, 0, 0, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (2, '京MFV786', 0, '2021-04-08 16:49:37', '2021-06-03 16:33:34', '2021-03-22 10:59:42', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, NULL, 0, 0, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (3, '京CAB975', 0, '2021-04-08 16:49:37', '2021-06-03 16:30:15', '2021-03-24 10:59:10', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, NULL, 0, 0, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (4, '京LAA101', 0, '2021-04-08 16:49:37', '2021-06-03 16:30:17', '2021-03-24 10:49:29', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, NULL, 0, 0, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (5, '京LAA101', 0, '2021-06-03 16:30:30', '2021-06-03 16:30:37', '2021-03-24 10:49:29', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, NULL, 0, 0, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (6, '京LAA101', 0, '2021-06-03 16:32:04', '2021-06-03 16:32:16', '2021-03-24 10:49:29', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, NULL, 0, 0, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (7, '京LAA101', 0, '2021-06-03 16:32:55', '2021-06-04 11:41:48', '2021-03-24 10:49:29', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, NULL, 0, 0, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (8, '京LAA101', 0, '2021-06-03 16:33:02', '2021-06-04 11:41:50', '2021-05-30 10:49:29', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, NULL, 0, 0, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (9, '京LAA101', 0, '2021-06-03 16:34:12', '2021-06-04 11:41:51', '2021-05-01 10:49:29', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, NULL, 0, 0, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (10, '京MFV786', 0, '2021-06-03 17:15:05', '2021-06-04 11:41:53', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, '2021-05-02 10:49:29', 0, 1, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (11, '京MFV786', 0, '2021-06-03 17:15:09', '2021-06-04 11:41:55', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, '2021-05-31 10:49:29', 0, 1, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (12, '京LAA101', 0, '2021-06-03 17:28:24', '2021-06-04 11:41:56', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, '2021-05-30 11:49:29', 0, 1, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (13, '京A01', 0, '2021-06-03 18:03:27', '2021-06-04 11:41:57', '2021-06-01 10:49:29', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, NULL, 0, 0, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (14, '京A01', 0, '2021-06-03 18:03:31', '2021-06-04 11:41:59', '2021-06-01 10:49:29', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, NULL, 0, 0, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (15, '京A01', 0, '2021-06-03 18:03:36', '2021-06-04 11:42:00', '2021-06-01 10:49:29', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, NULL, 0, 0, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (16, '京A01', 0, '2021-06-03 18:03:39', '2021-06-04 11:42:02', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, '2021-06-01 10:49:29', 0, 1, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (17, '京A01', 0, '2021-06-03 18:03:42', '2021-06-04 11:42:03', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, '2021-06-01 10:49:29', 0, 1, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (18, '京B02', 0, '2021-06-03 18:06:50', '2021-06-04 11:42:06', '2021-06-01 10:49:29', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, NULL, 0, 0, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (19, '京A01', 0, '2021-06-03 19:15:37', '2021-06-04 11:42:08', '2021-06-02 10:49:29', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, NULL, 0, 0, NULL, NULL);
INSERT INTO `bulldozer_overview` VALUES (20, '京LAA101', 0, '2021-06-03 23:46:43', '2021-06-04 11:42:11', '2021-03-24 10:49:29', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 2, NULL, 0, 0, NULL, NULL);