使用python包pymysql在MySQL数据库中插入错误

Question

这是我的插入代码。

myCursor.execute("INSERT INTO news_table(news_title, news_source, news_link, news_img, news_date, news_view, news_text, news_hit) VALUES (%s,%s,%s,%s,%s,%s);",(nextntitle, nextnsource, nextnlink, nextnimg, nextndate, nextntext))

我的数据库名称是 news_table，它有 9 个属性，但是当我尝试使用代码插入数据时，它给了我以下错误

Traceback (most recent call last):
  File "C:/Users/qasys/PycharmProjects/conda_main/pythonmysql/checkdb.py", line 82, in <module>
    myCursor.execute("INSERT INTO news_table(news_title, news_source, news_link, news_img, news_date, news_view, news_text, news_hit) VALUES (%s,%s,%s,%s,%s,%s);",(nextntitle, nextnsource, nextnlink, nextnimg, nextndate, nextntext))
  File "C:\ProgramData\Anaconda3\envs\conda_main\lib\site-packages\pymysql\cursors.py", line 170, in execute
    result = self._query(query)
  File "C:\ProgramData\Anaconda3\envs\conda_main\lib\site-packages\pymysql\cursors.py", line 328, in _query
    conn.query(q)
  File "C:\ProgramData\Anaconda3\envs\conda_main\lib\site-packages\pymysql\connections.py", line 516, in query
    self._affected_rows = self._read_query_result(unbuffered=unbuffered)
  File "C:\ProgramData\Anaconda3\envs\conda_main\lib\site-packages\pymysql\connections.py", line 727, in _read_query_result
    result.read()
  File "C:\ProgramData\Anaconda3\envs\conda_main\lib\site-packages\pymysql\connections.py", line 1066, in read
    first_packet = self.connection._read_packet()
  File "C:\ProgramData\Anaconda3\envs\conda_main\lib\site-packages\pymysql\connections.py", line 683, in _read_packet
    packet.check_error()
  File "C:\ProgramData\Anaconda3\envs\conda_main\lib\site-packages\pymysql\protocol.py", line 220, in check_error
    err.raise_mysql_exception(self._data)
  File "C:\ProgramData\Anaconda3\envs\conda_main\lib\site-packages\pymysql\err.py", line 109, in raise_mysql_exception
    raise errorclass(errno, errval)
pymysql.err.InternalError: (1136, "Column count doesn't match value count at row 1")

我是第一次使用 mysql 和 python。任何人都可以就这个问题提供一些帮助。 注意：我没有数据库连接错误或包安装错误问题。

Answer 1

你有

(news_title, news_source, news_link, news_img, news_date, news_view, news_text, news_hit) 
VALUES (%s,%s,%s,%s,%s,%s)

目标列中的字段比 VALUES(...) 中的 %s 多

您必须为每个目标列提供一个值

Answer 2

您的错误显示“列计数与第 1 行的值计数不匹配”。列数与您的 %s 不匹配

应该是

myCursor.execute("INSERT INTO news_table(news_title, news_source, news_link, news_img, news_date, news_view, news_text, news_hit) VALUES (%s,%s,%s,%s,%s,0,%s,0);",(nextntitle, nextnsource, nextnlink, nextnimg, nextndate, nextntext))

删除 news_view 和 news_hit

或

myCursor.execute("INSERT INTO news_table(news_title, news_source, news_link, news_img, news_date, news_view, news_text, news_hit) VALUES (%s,%s,%s,%s,%s,0,%s,0);",(nextntitle, nextnsource, nextnlink, nextnimg, nextndate, nextntext))

为 news_view 和 news_hit

添加默认值 0 后