Backend DevelopmentPHP TutorialWhat is the mechanism for non-duplication of click-to-refresh data like Toutiao and other communities?
1. In Toutiao, the refreshed data is different every time you pull down. Normally, the news will be stored in a table, and the oldest data will be placed in front, and the top data will not change again if it is refreshed.
The same is true for her community. (I will not discuss the recommendation algorithm of Toutiao)
Reply content:
1. In Toutiao, the refreshed data is different every time you pull down. Normally, the news will be stored in a table, and the oldest data will be placed in front, and the top data will not change even if it is refreshed.
The same is true for her community. (I will not discuss the recommendation algorithm of Toutiao)
Personally, I think it should be the paging principle used. The first pull-down refresh corresponds to the first page, the second time to the second page, and then the backend queries the database based on this number of times
es和redis区别Jul 06, 2019 pm 01:45 PMRedis是现在最热门的key-value数据库，Redis的最大特点是key-value存储所带来的简单和高性能；相较于MongoDB和Redis，晚一年发布的ES可能知名度要低一些，ES的特点是搜索，ES是围绕搜索设计的。
一起来聊聊Redis有什么优势和特点May 16, 2022 pm 06:04 PM本篇文章给大家带来了关于redis的相关知识，其中主要介绍了关于redis的一些优势和特点，Redis 是一个开源的使用ANSI C语言编写、遵守 BSD 协议、支持网络、可基于内存、分布式存储数据库，下面一起来看一下，希望对大家有帮助。
实例详解Redis Cluster集群收缩主从节点Apr 21, 2022 pm 06:23 PM本篇文章给大家带来了关于redis的相关知识，其中主要介绍了Redis Cluster集群收缩主从节点的相关问题，包括了Cluster集群收缩概念、将6390主节点从集群中收缩、验证数据迁移过程是否导致数据异常等，希望对大家有帮助。
Redis实现排行榜及相同积分按时间排序功能的实现Aug 22, 2022 pm 05:51 PM本篇文章给大家带来了关于redis的相关知识，其中主要介绍了Redis实现排行榜及相同积分按时间排序,本文通过实例代码给大家介绍的非常详细，对大家的学习或工作具有一定的参考借鉴价值，希望对大家有帮助。
详细解析Redis中命令的原子性Jun 01, 2022 am 11:58 AM本篇文章给大家带来了关于redis的相关知识，其中主要介绍了关于原子操作中命令原子性的相关问题，包括了处理并发的方案、编程模型、多IO线程以及单命令的相关内容，下面一起看一下，希望对大家有帮助。
一文搞懂redis的bitmapApr 27, 2022 pm 07:48 PM本篇文章给大家带来了关于redis的相关知识，其中主要介绍了bitmap问题，Redis 为我们提供了位图这一数据结构，位图数据结构其实并不是一个全新的玩意，我们可以简单的认为就是个数组，只是里面的内容只能为0或1而已，希望对大家有帮助。
实例详解Redis实现排行榜及相同积分按时间排序功能的实现Aug 26, 2022 pm 02:09 PM本篇文章给大家带来了关于redis的相关知识，其中主要介绍了Redis实现排行榜及相同积分按时间排序,本文通过实例代码给大家介绍的非常详细，下面一起来看一下，希望对大家有帮助。
一起聊聊Redis实现秒杀的问题May 27, 2022 am 11:40 AM本篇文章给大家带来了关于redis的相关知识，其中主要介绍了关于实现秒杀的相关内容，包括了秒杀逻辑、存在的链接超时、超卖和库存遗留的问题，下面一起来看一下，希望对大家有帮助。
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
SublimeText3 Chinese version
Chinese version, very easy to use
SublimeText3 Mac version
God-level code editing software (SublimeText3)
MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.
Dreamweaver CS6
Visual web development tools
DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software
