CREATE TABLE `companies` (
`id` int(11) NOT NULL auto_increment,
`company` varchar(50) NOT NULL,
`price` decimal(8,2) NOT NULL,
`change` decimal(8,2) NOT NULL,
`lastudp` date NOT NULL,
PRIMARYKEY(`id`)
)ENGINE=MyISAMAUTO_INCREMENT=8DEFAULTCHARSET=utf8;
-- ----------------------------
-- Records
-- ----------------------------
INSERT INTO `companies` VALUES ('1', '3m Co', '71.72', '0.02', '2008-10-21');
INSERT INTO `companies` VALUES ('2', 'Alcoa Inc', '29.01', '0.42', '2008-10-20');
INSERT INTO `companies` VALUES ('3', 'AT&T Inc.', '31.61', '-0.48', '2008-10-21');
INSERT INTO `companies` VALUES ('4', 'Boeing Co.', '75.43', '0.53', '2008-10-13');
INSERT INTO `companies` VALUES ('5', 'United Technologies Corporation', '63.26', '0.55', '2008-10-09');
INSERT INTO `companies` VALUES ('6', 'Intel Corporation', '19.88', '0.31', '2008-10-15');
INSERT INTO `companies` VALUES ('7', 'Exxon Mobil Corp', '68.10', '-0.43', '2008-10-17');
如下图所示建立工程: