CREATE TABLE `t_demo` (
`id` int(32) NOT NULL,
`name` varchar(255) DEFAULT NULL,
`age` int(2) DEFAULT NULL,
`num` int(3) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
INSERT INTO `t_demo` VALUES ('1', '张三', '21', '69');
INSERT INTO `t_demo` VALUES ('2', '李四', '22', '98');
INSERT INTO `t_demo` VALUES ('3', '王五', '20', '54');
INSERT INTO `t_demo` VALUES ('4', '赵甜', '22', '80');