Course Intermediate 4589
Course Introduction:There are two main purposes for studying this course: 1. Visual panel layout adapts to the screen 2. Use ECharts to realize histogram display Core Technology: -Based on flexible.js + rem smart large screen adaptation - VScode cssrem plug-in - Flex layout - Less to use - Based on ECharts data visualization display - ECharts histogram data settings - ECharts map introduction
Course Elementary 2053
Course Introduction:Python visualization video series using matplotlib, seaborn, pyecharts, combined with real data sets; this video is reproduced from Bilibili: BV1gz411v7F5
Course Elementary 20833
Course Introduction:Use PDO mode (PHP data object) to connect and select databases (unified operation of various databases), execute SQL statements and process result sets
Course Intermediate 8254
Course Introduction:Many programmers who have worked for many years still have a very basic understanding of databases. They are confused as soon as they go out for interviews. They don’t understand basic SQL statements, more complex SQL queries, and SQL statement optimization. They don’t even know how to use them. Redis improves system performance and can withstand tens of millions of concurrencies. This set of courses will help you thoroughly understand MySQL locks, execution plans, indexes, MVCC & Redis transactions, cache, breakdown, penetration, avalanche, warm-up, etc., and you can complete all database interviews in one set!
Course Intermediate 4070
Course Introduction:PHP and MySQL database are golden partners. Not only are they free to use, but more importantly, MySQL can be better combined with PHP. PHP also provides a dedicated programming interface for the MySQL database, improving development efficiency.
javascript - How to store data underneath an array
2017-05-17 09:58:36 0 2 588
Problems with PHP storage database efficiency
2023-09-22 22:46:18 0 0 834
What is the difference between vuex and localstorage for storing data
What is the difference between vuex and localstorage for storing data?
2017-05-18 11:00:30 0 4 731
Where is data stored in Leaflet
2024-02-25 20:25:54 0 1 427
Store HTML DOM results into MySQL database
2023-09-15 23:41:06 0 1 531
Course Introduction:MongoDB adopts a sharded cluster architecture, shards store a specific range of data, and sharding rules define the data distribution method. Replica sets serve as redundancy mechanisms to ensure data availability. MongoDB uses BSON format to store data, data is stored in collections, and documents are the basic unit of data. The storage layer includes the WiredTiger storage engine, Journal, and memory mapping for efficient storage and access of data.
2024-04-07 comment 0 1153
Course Introduction:The data types stored in localstorage include "string", "number", "boolean" and "object": 1. String, the most common data type; 2. Number, used to store numerical types such as counters and scores. Data; 3. Boolean values, used to store Boolean data such as switch status and option selections; 4. Objects, stored in the form of JSON strings.
2023-11-22 comment 0 1892
Course Introduction:With the continuous development of network technology, the storage and processing of Internet digital information has become a key business. In network application development, how to store and manage data is a big problem. Although the PHP language is a scripting language, it has strong data processing and storage capabilities. In this article, we will introduce the ways in which PHP stores data. 1. File storage File storage is the most basic storage method. In PHP, you can use fopen(), fwrite(), fread() and other functions to read and write files to achieve data storage.
2023-05-06 comment 0 920
Course Introduction:The ways in which blockchain stores data include file storage, database storage, cache storage, distributed storage, storage network and smart contract storage. Detailed introduction: 1. File storage. Blockchain can store data in the form of files. This method is relatively simple. You can use any text editor to create a blockchain file and store the data in it. This method has data security. and reliability issues, because files may be tampered with or deleted; 2. Database storage, blockchain can store data in the form of a database, which can improve data security and reliability, etc.
2023-09-05 comment 0 4024
Course Introduction:Detailed explanation of Discuz database storage path Discuz is a popular open source forum program, and its database is a key part of storing all data of the forum. In the process of using Discuz to build a forum, it is very important to understand the storage path of the database. This article will introduce the storage path of the Discuz database in detail and provide some specific code examples to help readers better understand and apply it. 1. The basic concept of database storage path. In Discuz, the database storage path refers to the location of the database file on the server.
2024-03-09 comment 0 566