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Technical Articles

Database

What are the visualization tools for Redis?

1. Command line 1.1, iredis Use iredis, use | to pass redis through the pipe and use other shell tools, such as jq/fx/rg/sort/uniq/cut/sed/awk, etc. to process. It can also auto-complete, highlight, and have many functions. Official website address: https://iredis.io/2, Visualization Tool 2.1, Desktop Client Version 2.1.1, RedisDesktopManager This tool should be the most widely used visualization tool now. It has been around for a long time. It went through several iterations. Cross-platform support. It used to be free, but now it's a paid tool. The trial can last for half a month. [Related recommendations: Redis view

May 30, 2023 pm 05:15 PM

redis

What is the method of designing the Pika architecture of the Redis storage system?

Pika is an efficient, stable, simple and reliable open source NoSQL database product jointly developed by the 360 infrastructure team and the DBA team. It is fully compatible with the Redis protocol and supports 5 data structures (string, hash, list, set, zset). The data is persisted to RocksDB. Compared with the storage method of Redis memory, it can greatly reduce the occupation of server resources and enhance the data security. reliability. It can be deployed in two modes: stand-alone and cluster. The Pika project was launched in 2015 and was subsequently open sourced on Github. It currently has 3,700 stars and 35 contributors. The community has a large number of online businesses using Pika. Compare Redis storage

May 29, 2023 pm 08:07 PM

redis Pika

MySQL SQL syntax and SQL parsing sequence source code analysis

SQL (StructuredQueryLanguage) is a standard as a standard language for accessing relational databases. Many database products such as Oracle, DB2, SQLServer, PostgreSQL, MySQL support it. NoSQL in recent years initially claimed that SQL was no longer needed, but later had to be revised to NotOnlySQL to embrace SQL. The current typical version is the SQL92 standard. Other databases, including MySql, have also extended some of their own SQL statements based on the standards of SQL92 or SQL99, such as the limit keyword in MySQL. SQL language classification DD

May 29, 2023 am 10:34 AM

MySQL SQL

How to use the Redis plug-in in IDEA to connect to the Redis server

The Redis plug-in in IDEA is a visualization tool for Redis. You can connect to the Redis server through the plug-in and perform addition, deletion, modification and query operations. 1. IDEA installs the Redis plug-in 1. Click File->Setting2, click Plugins3, enter redis4 in BrowseRepositories, click Redis plug-in 5, download and restart 2. IDEA connects to the Redis server. After installation, use the right toolbar or File-> Setting->OtherSettings->NoSqlServer can find the window to connect to Redis, as shown below: My red

May 28, 2023 pm 06:27 PM

redis idea

Can't php be written to the database?

"Can't PHP be written into the database?" This topic involves both web development and database aspects. In this article, we will explore this common problem, explaining why PHP sometimes fails to write directly to the database, as well as possible causes and solutions. PHP is a popular open source programming language commonly used for web development. Its use in conjunction with databases is very common, as many web applications need to retrieve data from the database and write some data back to the database. However, sometimes PHP's task of writing to the database may fail

May 28, 2023 pm 04:53 PM

How to build NoSQL applications using PHP and MongoDB

With the development of the Internet, the increase in data volume and changes in data structure, NoSQL databases are increasingly used. MongoDB is an open source NoSQL database that is very suitable for storing large amounts of unstructured data, such as text, logs, etc. At the same time, PHP is a widely used scripting language and one of the first choices for building web applications. In this article, we will explore how to build NoSQL applications using PHP and MongoDB. Install and configure MongoDB First, we need

May 27, 2023 pm 09:21 PM

PHP MongoDB nosql

How SpringBoot integrates Redis cache verification code

1. IntroductionRedisisanopensource(BSDlicensed),in-memorydatastructurestore,usedasadatabase,cache,andmessagebroker.Translation: Redis is an open source in-memory data structure storage system, which can be used as: database, cache and message middleware. Redis is an open source, high-performance key-value database developed in C language. The officially provided data can reach **100000+** QPS. QPS (Queries-per-second), the number of queries per second. (

May 27, 2023 pm 09:16 PM

redis SpringBoot

Mysql large website technical architecture core case analysis

7. On-demand: Extensible architecture of the website Extensibility: refers to the ability to continuously expand or improve system functions with minimal impact on the existing system. It is the opening and closing principle at the system architecture design level. The architecture design takes into account future functional expansion. When new functions are added to the system, there is no need to modify the structure and code of the existing system. Scalability: refers to the system's ability to enhance (reduce) its own computing and processing capabilities by increasing (decreasing) the scale of its own resources. A. Building a scalable website architecture 1. The greatest value of a software architect does not lie in how many advanced technologies he has mastered, but in the ability to divide a large system into N low-coupling sub-modules. These sub-modules include

May 27, 2023 pm 02:31 PM

MySQL

What are the core principles of mysql large-scale website technical architecture?

1. Evolution of large-scale website architecture A. Large-scale website software systems are characterized by high concurrency, large traffic; high availability; massive data; widely distributed users, complex network conditions; poor security environment; rapid changes in requirements, frequent releases; progressive development; B .Evolution and development process of large-scale website architecture 1. Initial stage: one server, LNMP 2. Separation of application services and data services: application server (CPU); database server (fast disk retrieval and data caching); file server (large hard disk); 3 .Use cache to improve website performance: local cache cached on the application server (fast access, limited by application server memory, limited data volume), remote distributed cache (use a cluster to deploy a server with large memory as a dedicated cache server)

May 27, 2023 pm 01:54 PM

MySQL

SaaS Platform Development Guide in PHP

With the continuous development of Internet technology, the concept of SaaS (Software as a Service) is becoming more and more popular. In this model, the software no longer requires the application to be installed on the local device, but provides services through the cloud. Therefore, SaaS has become the best solution, providing software services that provide full network coverage and allow users to access the network anytime and anywhere. As a powerful server-side technology, PHP can be used for the development of SaaS platforms. This article will explore PHP development

May 27, 2023 pm 01:10 PM

PHP SaaS 平台开发

What are the ORM frameworks in PHP7.0?

As the development of the Internet becomes more and more mature, the development of enterprise-level applications is becoming more and more popular. In order to improve development efficiency and code quality, developers use various ORM frameworks. This article will introduce the ORM framework commonly used in PHP7.0. LaravelEloquentLaravelEloquent is an ORM implementation in the Laravel framework. It adopts the ActiveRecord mode, allowing developers to easily implement

May 27, 2023 am 09:21 AM

PHP ORM框架选择

How to improve application performance with ThinkPHP cache settings

1. Advantages of Caching Caching refers to the technology of saving the results in the computer in the cache so that the results can be quickly obtained when needed in the future. In web applications, caching has the following advantages: Improve the response speed and efficiency of the application Reduce the load on the server and database Improve user access speed and experience When developing applications using ThinkPHP, the use of caching technology is very necessary and important. 2. Classification of ThinkPHP cache In the ThinkPHP framework, cache is divided into three categories: file cache, Memcache cache and Redis cache. File caching File caching saves cached data in a file. It can quickly save a PHP array on the hard disk and does not require

May 26, 2023 pm 02:14 PM

thinkphp

What are the frequently asked interview questions in Python?

Q51. Please explain the meaning of using args and kwargs. When we don’t know how many parameters to pass to the function, for example, we pass a list or tuple, we use *args: deffunc(*args):foriinargs:print(i)func (3,2,1,4,7)32147 When we don’t know how many keyword parameters to pass, use **kwargs to collect keyword parameters: deffunc(**kwargs):foriinkwargs:print(i,kwargs[i ])func(a=1,b=2,c=7)a.1b.2c.7Q52. How to delete files in Python

May 25, 2023 pm 11:59 PM

Python

Ten best practice tips for PHP live broadcast function development

In order to implement real-time live broadcast function on the website, PHP has become a very popular choice, and the development of PHP live broadcast function can maximize the scalability, maintainability and user experience of the application through some best practice techniques. . Here are ten best practice tips. Choosing the best streaming solution Choosing a suitable streaming solution (such as RTMP, HLS, DASH, etc.) is crucial to developing PHP live broadcast functions. It is necessary to choose the most suitable streaming solution for the application according to the needs of the user to ensure usability, scalability and

May 25, 2023 pm 10:51 PM

PHP 最佳实践直播功能