mysql查詢慢用遊式遊標

import pymysql class MySQLSnippet: def __init__(self): # 遊式遊標 self.connect_settings = { "host": "127.0.0.1", "port": 3306, "user": "root", "passwd": "root", "db": "dbname", } # 配置數據庫鏈接參數 self.connection = pymysql.connect(**self.connect_settings) self.cursor = self.connection.cursor(cursor=pymysql.cursors.SSDictCursor) # self.cursor = self.connection.cursor(cursor=pymysql.cursors.DictCursor) def dosomething(self): select_sql = "SELECT NEWS_TITLE, NEWS_URL FROM `vnews_content_wechat` WHERE NEWS_PUBLISH_TIME between '2020-11-02 00:00:00' and '2020-11-09 00:00:00';" self.cursor.execute(select_sql) # 1. for 循環的方式 for cur in self.cursor: print(cur) # 2. while 循環的方式 while True: data = self.cursor.fetchone() if data: Ellipsis else: break def close(self): # 關閉遊標 self.cursor.close() self.connection.close()