Php 我是否遇到SQL语法错误

在SQL server上运行此查询时，出现以下错误：

MySQL说：文档

#1064-您的SQL语法有错误；查看与您的MySQL服务器版本对应的手册，了解使用near的正确语法

title

varchar（20）字符集utf8不为空，

contractText

text CHAR'在第13行

---

为什么会出现这种情况？

您没有在

username

列中添加注释

CREATE TABLE IF NOT EXISTS `contracts` (
  `contractId` int(11) NOT NULL AUTO_INCREMENT,
  `username` varchar(32) CHARACTER SET utf8 NOT NULL COMMENT,
  `title` varchar(20) CHARACTER SET utf8 NOT NULL,
  `contractText` text CHARACTER SET utf8 NOT NULL,
  `date` datetime NOT NULL,
  `contractState` tinyint(1) NOT NULL COMMENT '1-Nepatvirtinta, 2- patvirtinta, 3-  panaikinta, 4- atmesta',
  PRIMARY KEY (`contractId`),
  UNIQUE KEY `title` (`title`)
) ENGINE=MyISAM  DEFAULT CHARSET=utf8 COLLATE=utf8_lithuanian_ci AUTO_INCREMENT=15 ;



INSERT INTO `contracts` (`contractId`, `username`, `title`, `contractText`, `date`,   `contractState`) VALUES


CREATE TABLE IF NOT EXISTS `users` (
  `username` varchar(32) CHARACTER SET utf8 NOT NULL,
  `password` varchar(32) CHARACTER SET utf8 NOT NULL,
  `email` varchar(20) CHARACTER SET utf8 NOT NULL,
  `usergroup` tinyint(1) NOT NULL COMMENT,
  `name` varchar(32) CHARACTER SET utf8 NOT NULL,
  `lastname` varchar(32) CHARACTER SET utf8 NOT NULL,
  `state` tinyint(4) NOT NULL COMMENT,
 PRIMARY KEY (`username`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_lithuanian_ci;

或者删除此行中的

注释

关键字

`username` varchar(32) CHARACTER SET utf8 NOT NULL COMMENT  ,
        add one here---------------------------------------^

在中为注释添加一些注释或删除注释。下面是工作代码

      `username` varchar(32) CHARACTER SET utf8 NOT NULL COMMENT 'comment',

---

只需修复表创建，添加显式注释或删除注释关键字（如果不需要）

尝试将其修改为：

 CREATE TABLE IF NOT EXISTS `contracts` (
`contractId` int(11) NOT NULL AUTO_INCREMENT,
`username` varchar(32) CHARACTER SET utf8 NOT NULL COMMENT 'comment',
`title` varchar(20) CHARACTER SET utf8 NOT NULL,
`contractText` text CHARACTER SET utf8 NOT NULL,
`date` datetime NOT NULL,
`contractState` tinyint(1) NOT NULL COMMENT '1-Nepatvirtinta, 2- patvirtinta, 3-    
 panaikinta, 4- atmesta',
 PRIMARY KEY (`contractId`),
 UNIQUE KEY `title` (`title`)
) ENGINE=MyISAM  DEFAULT CHARSET=utf8 COLLATE=utf8_lithuanian_ci AUTO_INCREMENT=15 ;

---

从此行中删除

注释

：

CREATE TABLE IF NOT EXISTS `contracts` (
  `contractId` int(11) NOT NULL AUTO_INCREMENT,
  `username` varchar(32) CHARACTER SET utf8 NOT NULL COMMENT 'add explicit comment her',
  `title` varchar(20) CHARACTER SET utf8 NOT NULL,
  `contractText` text CHARACTER SET utf8 NOT NULL,
  `date` datetime NOT NULL,
  `contractState` tinyint(1) NOT NULL COMMENT '1-Nepatvirtinta, 2- patvirtinta, 3- panaikinta, 4- atmesta',
  PRIMARY KEY (`contractId`),
  UNIQUE KEY `title` (`title`)
) ENGINE=MyISAM  DEFAULT CHARSET=utf8 COLLATE=utf8_lithuanian_ci AUTO_INCREMENT=15 ;

`username` varchar(32) CHARACTER SET utf8 NOT NULL , //COMMENT