zcl_ccc 发表于 2018-10-7 07:56:40

MySQL GROUP BY 语句

SET NAMES utf8;  
SET FOREIGN_KEY_CHECKS = 0;
  

  
-- ----------------------------
  
--Table structure for `employee_tbl`
  
-- ----------------------------
  
DROP TABLE IF EXISTS `employee_tbl`;
  
CREATE TABLE `employee_tbl` (
  
`id` int(11) NOT NULL,
  
`name` char(10) NOT NULL DEFAULT '',
  
`date` datetime NOT NULL,
  
`singin` tinyint(4) NOT NULL DEFAULT '0' COMMENT '登录次数',
  
PRIMARY KEY (`id`)
  
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
  

  
-- ----------------------------
  
--Records of `employee_tbl`
  
-- ----------------------------
  
BEGIN;
  
INSERT INTO `employee_tbl` VALUES ('1', '小明', '2016-04-22 15:25:33', '1'), ('2', '小王', '2016-04-20 15:25:47', '3'), ('3', '小丽', '2016-04-19 15:26:02', '2'), ('4', '小王', '2016-04-07 15:26:14', '4'), ('5', '小明', '2016-04-11 15:26:40', '4'), ('6', '小明', '2016-04-04 15:26:54', '2');
  
COMMIT;
  

  
SET FOREIGN_KEY_CHECKS = 1;


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