MySQL数据库连接与切换操作在监控验证中的关键点是什么？

import mysql.connectorfrom mysql.connector import Errordef create_connection(host_name, user_name, user_password, db_name):    connection = None    try:        connection = mysql.connector.connect(            host=host_name,            user=user_name,            passwd=user_password,            database=db_name        )        print("Connection to MySQL DB successful")    except Error as e:        print(f"The error '{e}' occurred")    return connectiondef switch_database(connection, new_db_name):    try:        # Switch to the new database        cursor = connection.cursor()        cursor.execute(f"USE {new_db_name}")        print(f"Switched to database: {new_db_name}")    except Error as e:        print(f"The error '{e}' occurred while switching database")def main():    # Database configuration    host_name = 'localhost'    user_name = 'your_username'    user_password = 'your_password'    db_name = 'original_db_name'    new_db_name = 'new_db_name'    # Create connection to the original database    connection = create_connection(host_name, user_name, user_password, db_name)    # Switch to the new database    if connection:        switch_database(connection, new_db_name)if __name__ == "__main__":    main()

代码块包含了以下步骤：

1、create_connection 函数用于创建到MySQL数据库的连接。

2、switch_database 函数用于切换当前连接到的数据库。

3、main 函数是程序的入口点，它配置数据库连接信息，创建连接，并切换到新的数据库。

请根据您的实际数据库配置替换your_username、your_password、original_db_name 和new_db_name，此代码块假设您已经安装了MySQL Connector/Python，如果没有安装，您需要先安装它，因为这是连接MySQL数据库所需的Python库。