将 Python 笔记本连接到 MySQL 数据库

Connecting Python notebook to MySQL Database

如何将 MySQL 数据库连接到我的 Jupyter notebook 以使用 Python notebook 执行查询?

我的代码:

import pymysql
conn = MySQLdb.connect(host=dsn_hostname, port=dsn_port, user=dsn_uid, passwd=dsn_pwd, db=dsn_database)

建立连接后如何开始执行查询?

文档里都写了:https://pymysql.readthedocs.io/en/latest/user/examples.html

import pymysql.cursorsenter 
connection = pymysql.connect(host='localhost',
                         user='user_name',
                         password='password',
                         db='name_of_database',
                         charset='utf8mb4',
                         cursorclass=pymysql.cursors.DictCursor)