使用BeautifulSoup使用MYSQL中相应列的URL将新数据添加到新列中

Question

我在一个表中创建了一个新列，并且我正在使用beautifulsoup刮取相应的列，并将提取的内容插入到新列中。我只会收到错误消息，可以使用插入还是更新？表中总共有10列，但仅定位了两列。我怎样才能解决这个问题？谢谢。我正在尝试使用reddit_links，使用beautifulsoup，然后将其放在新创建的reddit_posts_2列中。

import pymysql
from bs4 import BeautifulSoup
from selenium import webdriver

chrome_options = webdriver.ChromeOptions()
chrome_options.add_argument("--incognito")
driver = webdriver.Chrome(chrome_options=chrome_options)

mainDB_cnx = pymysql.connect(user='', password='',
                         host='',
                         database='Content', use_unicode=True, charset="utf8mb4")
mainDB_cursor = mainDB_cnx.cursor()

mainDB_cursor.execute("SELECT reddit_links FROM Content.Reddit")
rows = mainDB_cursor.fetchone()
for row in rows:
    print(row[0])
    row = mainDB_cursor.fetchone()
    open_page = driver.get(row[0])
    html_source = driver.page_source
    soup = BeautifulSoup(html_source, 'html.parser')
    for script in soup(["script", "style"]):
         script.decompose()
    reddit_posts_2 = soup.get_text()

    with mainDB_cnx:
        mainDB_cursor.execute(
            "INSERT INTO Reddit(reddit_posts_2) VALUES(%s)",
            reddit_posts_2.encode('utf-8'))


# Close the cursor
mainDB_cursor.close()

# Commit the transaction
mainDB_cnx.commit()

# Close the database connection
mainDB_cnx.close()