User表
CREATE TABLE `user` (
`id` int(11) NOT NULL AUTO_INCREMENT COMMENT \'用户ID\',
`username` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT \'用户名 \',
`password` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT \'密码\',
`phone` varchar(11) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT \'手机号\',
`email` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT \'邮箱\',
`sex` varchar(2) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT \'性别\',
`createdTime` datetime(0) NULL DEFAULT NULL COMMENT \'创建时间\',
`updatedTime` date NULL DEFAULT NULL COMMENT \'修改时间\',
PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 26 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = Dynamic;
插入一些数据
INSERT INTO `user` VALUES (1, \'admin\', \'admin123\', \'139999999\', \'9999999@qq.com\', \'男\', \'2019-06-14 10:35:37\', \'2018-06-14\');
INSERT INTO `user` VALUES (2, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2018-06-14\');
INSERT INTO `user` VALUES (3, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2018-06-15\');
INSERT INTO `user` VALUES (4, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-06-17\');
INSERT INTO `user` VALUES (5, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-06-18\');
INSERT INTO `user` VALUES (6, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-07-18\');
INSERT INTO `user` VALUES (7, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-07-11\');
INSERT INTO `user` VALUES (8, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-07-12\');
INSERT INTO `user` VALUES (9, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-07-13\');
INSERT INTO `user` VALUES (10, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-07-14\');
INSERT INTO `user` VALUES (11, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-07-15\');
INSERT INTO `user` VALUES (12, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-03-18\');
INSERT INTO `user` VALUES (13, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-03-18\');
INSERT INTO `user` VALUES (14, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-03-18\');
INSERT INTO `user` VALUES (15, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-03-18\');
INSERT INTO `user` VALUES (16, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-08-18\');
INSERT INTO `user` VALUES (17, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-08-11\');
INSERT INTO `user` VALUES (18, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-08-12\');
INSERT INTO `user` VALUES (19, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-08-13\');
INSERT INTO `user` VALUES (20, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-08-14\');
INSERT INTO `user` VALUES (21, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-08-15\');
INSERT INTO `user` VALUES (22, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-08-10\');
INSERT INTO `user` VALUES (23, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-08-03\');
INSERT INTO `user` VALUES (24, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-08-02\');
INSERT INTO `user` VALUES (25, \'admin\', \'admin123\', \'1399999999\', \'99999999@qq.com\', NULL, \'2019-06-14 10:37:52\', \'2019-08-01\');
按日查询
SELECT DATE_FORMAT(updatedTime,\'%Y-%m-%d\') days,count(*) as sum,sum(id) as num,MAX(id) as max FROM user GROUP BY days
结果
按周查询
SELECT DATE_FORMAT(updatedTime,\'%Y%u\') weeks,count(*) as sum,sum(id) as num,MAX(id) as max FROM user where updatedTime >= \'2019-08-01\' and updatedTime <=\'2019-08-30\' GROUP BY weeks
结果
按月查询
SELECT DATE_FORMAT(updatedTime,\'%Y-%m\') months,count(*) as sum,sum(id) as num,MAX(id) as max FROM user GROUP BY months
结果
按年查询
SELECT DATE_FORMAT(updatedTime,\'%Y\') years,count(*) as sum,sum(id) as num,MAX(id) as max FROM user GROUP BY years
结果
DATE_FORMAT(date,format)
根据format字符串格式化date值。下列修饰符可以被用在format字符串中：
%M 月名字(January……December)
%W 星期名字(Sunday……Saturday)
%D 有英语前缀的月份的日期(1st, 2nd, 3rd, 等等。）
%Y 年, 数字, 4 位
%y 年, 数字, 2 位
%a 缩写的星期名字(Sun……Sat)
%d 月份中的天数, 数字(00……31)
%e 月份中的天数, 数字(0……31)
%m 月, 数字(01……12)
%c 月, 数字(1……12)
%b 缩写的月份名字(Jan……Dec)
%j 一年中的天数(001……366)
%H 小时(00……23)
%k 小时(0……23)
%h 小时(01……12)
%I 小时(01……12)
%l 小时(1……12)
%i 分钟, 数字(00……59)
%r 时间,12 小时(hh:mm:ss [AP]M)
%T 时间,24 小时(hh:mm:ss)
%S 秒(00……59)
%s 秒(00……59)
%p AM或PM
%w 一个星期中的天数(0=Sunday ……6=Saturday ）
%U 星期(0……52), 这里星期天是星期的第一天
%u 星期(0……52), 这里星期一是星期的第一天
%% 一个文字“%”。