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Technical Articles

Database

Is node.js a high-level language?

node.js is not a high-level language, but a JavaScript running environment based on the Chrome V8 engine. It is a development platform that allows JavaScript to run on the server. It is used to support the execution of JavaScript code and is used to easily build fast-response and easy-to-expand Internet application.

Dec 09, 2021 pm 05:40 PM

node.js

What is the difference between sqlite and mysql

Differences: 1. Compared with MySQL, SQLite supports fewer data types. 2. SQLite has better portability, while MySQL has worse portability. 3. MySQL has a well-structured user management system, but SQLite does not. 4. SQLite does not have a built-in authentication mechanism, but MySQL does, which is more secure.

Dec 01, 2021 pm 07:08 PM

mysql

What framework does nodejs have?

The nodejs frameworks include: Express, Koa, Socket, Hapi, Total, Sail, Derby, Meteor.js, Loopback, NestJS, Mean, Partial, Egg.js, thinkjs, Sails, etc.

Nov 23, 2021 pm 04:31 PM

nodejs 框架

Teach you step by step to build Mysql single machine multiple instances

With the development of Internet technology, the amount of data is becoming larger and larger, and we are in urgent need of a large storage and large analysis system. Although there are data storage methods such as NoSQL database and Hadoop file storage that can solve this problem, relational databases still have their advantages, especially the processing of structured data, and the performance is still excellent.

Nov 19, 2021 pm 04:56 PM

mysql linux ubuntu

Highly liked sharing: MySQL optimization ideas that are in line with production

Due to the length of the article, it is impossible to explain every point in detail like a video tutorial. I can only summarize some general points based on my limited knowledge. Even so, the length of the article is already very long. If you are interested in a certain point, please go to Baidu/Google for in-depth knowledge of individual details.

Nov 05, 2021 pm 02:16 PM

MySQL

What are the comparison operators?

Comparison operators are: =, "<=>", "<> (!=)", "<=", ">=", >, "IS NULL", "IS NOT NULL", LEAST, GREATEST, IN , ""NOT IN", LIKE, REGEXP, etc.

Jul 12, 2021 pm 02:46 PM

比较运算符

What are the differences between Mysql8 and mysql5.7

This article will introduce to you the difference between Mysql8 and mysql5.7. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

Jun 07, 2021 am 09:34 AM

mysql

Come and have some basic PHP interview questions

This article summarizes some basic PHP interview questions for everyone. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

May 25, 2021 pm 01:40 PM

PHP基础面试题

8 Node.js Frameworks Worth Knowing in 2021

This article will introduce to you the Node.js framework that is most worth knowing and using in 2021. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

Apr 28, 2021 am 11:46 AM

Node.js 框架

Summary of common interview questions about Redis (with answer analysis)

After interviewing with 6 major manufacturers, I summarized and shared with you the common Redis interview questions that were poorly asked (with answers and analysis). It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

Apr 08, 2021 am 10:29 AM

redis 面试题

what is cap

The full name of cap is the CAP principle or the CAP theorem, which means that in a distributed system, the three elements of consistency (Consistency), availability (Availability), and partition tolerance (Partition tolerance) can only achieve at most two points at the same time. It is impossible. Take care of all three.

Mar 18, 2021 pm 04:11 PM

cap

Introduction to usage scenarios of redis data structure

There are five data structures in the redis database, which are: string-string, Hash-dictionary, List-list, Set-collection, and Sorted Set-ordered set.

Mar 09, 2021 am 09:09 AM

redis 数据结构使用场景

A PHPer with 3-5 years of experience should have these skills!

It’s time again, gold, three and silver, the season of changing jobs. I wasn't planning to change my job, but I looked through recruitment information online. Since I work in PHP, I looked at the current recruitment needs in the next 3-5 years, and found that these recruitment information had the following requirements...

Mar 08, 2021 am 11:57 AM

php

redis introduces the principle of distributed database CAP

The traditional ACID are A (Atomicity), C (Consistency), I (Isolation), Independence, D (Durability). Persistence relational databases follow ACID rules, which will be introduced in detail in the redis column.

Feb 25, 2021 am 10:02 AM

redis CAP原理