You have an error in your SQL syntax； check the manual that corresponds to your MySQL server version

最近在学python爬虫，再写入数据的时候写不进数据库。报了这个很常见的异常

pymysql.err.ProgrammingError: (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 'rank,

多次检查语句，修改数据库格式还是不行，总是报这个错误。最后通过换参数位置突然发现，每次都是rank这里的问题，然后把数据库里的rank变量改名，代码中的参数也改了，然后就行了。用了这么久数据库突然发现还有这个东西，属实惊呆我了

写入数据库rank变量不能用，需要修改其他名字

原代码

def process_item(self,item,spider):title = item.get('title', '')subject = item.get('subject', '')rank = item.get('rank', 0)self.cursor.execute("insert into movie(rank,subject,title) values (%s,%s,%s)",(rank,subject,title))return item

报错

pymysql.err.ProgrammingError: (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 'rank,subject,
title) values ('8.3','过去的如果就让它过去了，未来只' at line 1")
2022-08-06 16:08:29 [scrapy.core.scraper] ERROR: Error processing {'rank': '8.7', 'subject': '世界离独裁只有五天。', 'title': '浪潮'}

修改后

def process_item(self,item,spider):title = item.get('title', '')subject = item.get('subject', '')rank = item.get('rank', 0)self.cursor.execute("insert into movie(raning,subject,title) values (%s,%s,%s)",(rank,subject,title))return item

运行成功

完美！！！

目前还不明确知道为什么不能用rank参数

猜测可能是函数或者一些特定名字吧，上网也没有查出所以然来，毕竟是写在sql语句中的。

如有知道为什么不能用rank或者还有其他不能用的名字的朋友，希望不吝赐教！

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