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Technical Articles

Database

Introduction to redis learning and the four major classifications of NoSQL databases

MongoDB is a database based on distributed file storage. Written in C++ language. It aims to provide scalable and high-performance data storage solutions for WEB applications; the redis column will introduce it in detail.

Feb 05, 2021 pm 05:42 PM

redis学习 NoSQL

Redis learning introduces current NoSQL application scenarios

The combination of SQL and NoSQL. How to store product information on Alibaba Chinese website? Take a look at the homepage of Alibaba Chinese website. Taking women's clothing/women's bags as an example, the architecture development process: 1. Evolution process 2. 5th generation 3. 5th generation architecture Mission and us For related storage issues of multiple data source types, take a look at the homepage of Alibaba’s Chinese website, taking women’s clothing/baby girls as an example 1. Basic product information (number and name, etc., unchanged, stable data) name, price, factory Date, manufacturer, these stable data relational databases, Mysql/oracle, Taobao is currently de-Oizing (that is, removing Oracle)

Feb 04, 2021 pm 05:50 PM

redis学习-当下NoSQL应用场景简介

What are the ACID properties of relational database system transactions?

ACID characteristics of relational database system transactions: 1. Atomicity; all operations in the transaction are either completed or none. 2. Consistency; the database must always be in a consistent state. 3. Independence; concurrent transactions will not affect each other. 4. Persistence; once a transaction is committed, the modifications it makes will be permanently saved in the database.

Jan 28, 2021 pm 04:38 PM

关系型数据库系统事务 ACID特性

Master MYSQL Advanced

A large part of the pressure on the server comes from the performance of the database. If there is no stable database and server environment, the server is prone to some failures or even downtime, and the consequences are immeasurable. Therefore, database performance optimization is essential. few.

Jan 25, 2021 am 09:14 AM

MYSQL进阶

In-depth analysis of ThinkPHP cache source code

"Caching is a function that will be used after the project has been running for a period of time. This article will do an in-depth analysis of the cache in the framework." Preface Caching is an essential function in the project. When the number of users is large, It must be cached. If you check the database directly, it will be too bad for the user experience.

Jan 18, 2021 pm 10:46 PM

ThinkPHP

What are the differences between redis and mysql?

Redis database tutorial: This article summarizes several differences between redis and mysql, which has certain reference value. I hope it can be helpful to everyone.

Jan 06, 2021 am 10:25 AM

redis mysql 区别

What is stored in the database

Stored in the database are data and the relationships between data. A database is a warehouse that organizes, stores, and manages data according to a data structure. It is a collection of large amounts of data that is stored in a computer for a long time, is organized, shareable, and unified management.

Dec 28, 2020 pm 02:28 PM

数据库

Pinterest MySQL practice uses sharding to solve the storage problem of tens of billions of data

This is a technical study of how we split data across multiple MySQL servers. Pinterest is your discovery engine for everything that interests you. From a data perspective, Pinterest is the largest collection of human interest images in the world. There are over 50 billion Pins saved by Pinners on 1 billion boards

Dec 24, 2020 am 09:25 AM

Pinterest MySQL 数据存储

What are the three types of databases?

Database types can be divided into hierarchical, network and relational types. A hierarchical database presents data according to a hierarchical structure (tree structure); a network database is a database that uses network principles and methods and is based on a network data model; a relational database uses a relational model to A database that organizes data.

Dec 16, 2020 pm 05:27 PM

数据库

Database performance optimization for java interview

Database optimization: 1. Configure mysql performance optimization parameters; 2. Optimize the data table structure; 3. Use field indexes rationally.

Dec 01, 2020 pm 02:56 PM

java 面试数据库性能优化

What are non-relational databases?

Common non-relational databases are: 1. mongodb; 2. cassandra; 3. redis; 4. hbase; 5. neo4j; among which mongodb is a very famous NoSQL database, which is a document-oriented open source database.

Nov 23, 2020 am 10:28 AM

非关系型数据库

What are the differences between relational databases and non-relational databases?

Difference: Relational data is naturally in tabular format, so it is stored in the rows and columns of data tables; data tables can be stored in association with each other, and data can be easily extracted. Non-relational data is not suitable for storage in rows and columns of data tables, but is grouped together in large chunks; non-relational data is usually stored in data sets, like documents, key-value pairs, or graph structures.

Nov 12, 2020 pm 05:00 PM

关系型数据库关系型数据库

Detailed explanation of the application scenarios, advantages and disadvantages of Redis

Below, the Redis tutorial column will introduce the application scenarios, advantages and disadvantages of Redis to you. I hope it will be helpful to friends in need! As a typical non-relational database, Redis is currently widely used in enterprise-level applications. It is very suitable for scenarios with little storage and huge access volume. All data is in-memory...

Nov 03, 2020 pm 03:41 PM

Redis

How to understand what distributed databases are

Distributed databases include: 1. Elasticsearch database, which can exist on a single node or multiple nodes; 2. Redis database, which supports rich data types; 3. Mongodb database, which can obtain data more conveniently; 4. Mysql distributed cluster, high availability .

Oct 30, 2020 pm 02:24 PM

分布式数据库