1064 - 你的 SQL 语法有错误吗？

Question

1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''transactionid' int(11) DEFAULT NULL, PRIMARY KEY (sid), KEY pid (pid)' at line 12

-- Table structure for table `products`
CREATE TABLE IF NOT EXISTS 

`products` ( `pid` int(11) NOT NULL AUTO_INCREMENT,
`product` varchar(255) NOT NULL,
`product_img` varchar(100) DEFAULT NULL,
`price` int(11) DEFAULT NULL,
 `currency` varchar(10) DEFAULT 'USD',
  PRIMARY KEY (`pid`)
 ) ENGINE=InnoDB  DEFAULT 
 CHARSET=latin1 AUTO_INCREMENT=3 ;

--
-- Dumping data for table `products`
--

 INSERT INTO `products` (`pid`, `product`, `product_img`, `price`) 
 VALUES (1, 'White T-Shirt', 'white.png', 22), (2, 'Black T-Shirt', 'black.png', 30);

  --------------------------------------------------------

  -- Table structure for table `sales`

  CREATE TABLE IF NOT EXISTS 

 `sales` ( `sid` int(11) NOT NULL AUTO_INCREMENT,
 `pid` int(11) DEFAULT NULL,
 `uid` int(11) DEFAULT NULL,
 `saledate` date DEFAULT NULL,
 'transactionid' int(11) DEFAULT NULL,
  PRIMARY KEY (`sid`),
  KEY `pid` (`pid`),
   KEY `uid` (`uid`)
  ) 

 ENGINE=InnoDB  DEFAULT CHARSET=latin1 AUTO_INCREMENT=12 ;

--
-- Dumping data for table `sales`
--

 INSERT INTO `sales` (`sid`, 

`pid`, `uid`, `saledate`) VALUES
 (1, 2, 1, '0000-00-00'),
 (2, 2, 1, '0000-00-00'),
 (3, 1, 1, '0000-00-00'),
 (6, 2, 1, '2011-03-13'),
 (7, 2, 1, '2011-03-13'),
 (8, 2, 1, '2011-03-13'),
 (9, 2, 1, '2011-03-13'),
 (10, 2, 1, '2011-03-13'),
 (11, 1, 1, '2011-03-13');

Answer 1

检查 transactionid 周围的引号。您需要使用 ` 而不是 '。

Answer 2

此行语法错误：

'transactionid' int(11) DEFAULT NULL,

它应该像其他列声明一样，意味着列名周围的字符不应该是 '（单引号）而应该是 ` (反引号) 符号

`transactionid` int(11) DEFAULT NULL,

1064 - 你的 SQL 语法有错误吗？

1064 - You have an error in your SQL syntax?

mysql

create-table