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tech/20220901 Are You Familiar with These Popular  Open Source Databases-.md
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[#]: subject: "Are You Familiar with These Popular Open Source Databases?"
[#]: via: "https://www.opensourceforu.com/2022/09/are-you-familiar-with-these-popular-open-source-databases/"
[#]: author: "Jishnu Saurav Mittapalli https://www.opensourceforu.com/author/jishnu-saurav-mittapalli/"
[#]: collector: "lkxed"
[#]: translator: "toknow-gh"
[#]: reviewer: " "
[#]: publisher: " "
[#]: url: " "
Are You Familiar with These Popular Open Source Databases?
======
*As data grows by leaps and bounds, its organisation becomes all-important. This article briefly describes the most popular databases being used by software development teams today.*
In software systems, data is stored in an organised format and can be accessed electronically using a database. As data has become a very important asset today, it is very important for us to have a basic knowledge about the different databases in use today.
The first database that we will be looking at is MySQL.
### MySQL
MySQL is one of the most widely used open source database management systems. Owned by Oracle Corporation, it works on most major operating systems like Windows, MacOS, Linux, etc. One big benefit of MySQL is that it works really well for small and large applications.
#### Advantages
* It works well with a variety of operating systems and programming languages like PHP, C, C++, Perl, etc.
* It is open source and free.
* It supports a huge size of data of about 8 million terabytes.
* MySQL is customisable as it is open source.
* It is also much faster than other databases.
* To install and get started with MySQL on your Ubuntu based computer, use the command given below:
```
$sudo apt update
$sudo apt install mysql-server
$sudo systemctl start mysql.service
```
### MariaDB
MariaDB is popular primarily because of its good performance and compatibility with MySQL. It supports relational databases. The developers of MySQL have built MariaDB and guarantee that it is going to stay open sourced. This popular database server is part of most major cloud offerings today, and gives great importance to stability and performance. MariaDB has recently added clustering techniques using the Galera cluster, and is also compatible with Oracle databases.
#### Advantages
* Easy installation
* Supports operation on Big Data
* High scalability
* Easy import of data
* To install and get started with MariaDB on your Ubuntu based computer, use the command given below:
```
$sudo apt update
$sudo apt install mysql-server
$sudo systemctl start mysql.service
```
### RethinkDB
RethinkDB is an open source, free, distributed, and document based database server. This NoSQL database has been developed by Rethink, and can store JSON files with schemas that are dynamic. More importantly, real-time updates for query results can be pushed for applications to use. Since it is a distributed database, it is highly scalable. It has many automatic functions, making it a highly available database. As it is a popular database today, it is important that we learn how to use it.
#### Advantages
* This is basically an open source database that can be used for Web based applications.
* It is easy to scale because it’s a distributed database.
* It has many automatic functions with a high availability.
* This NoSQL database is JSON dynamic document based.
* The following commands can be helpful for using RethinkDB on your Ubuntu machine:
```
Get required packages source
/etc/lsb-release && echo” deb https://download.rethinkdb.com/repository/ubuntu-$DISTRIB_CODENAME $DISTRIB_CODENAME main” | sudo tee /etc/apt/sources.list.d/rethinkdb.list
Get required repositories
$wget -qO- https://download.rethinkdb.com/repository/raw/pubkey.gpg | sudo apt-key add
$sudo apt update
$sudo apt-get install rethinkdb
$sudo systemctl start rethinkdb
```
### OrientDB
OrientDB is a NoSQL and Java based open source database management system. This multi-model database service system supports all sorts of data like documents, dictionaries, objects, and graphs. It stores the relationships in the form of a graph database.
The following commands can be helpful for using OrientDB on your Ubuntu machine:
```
$sudo apt-get update
$wget -O orientdb-community-2.2.20.tar.gz http://orientdb.com/download.php?file=orientdb-community-2.2.20.tar.gz&os=linux
$tar -zxvf orientdb-community-2.2.20.tar.gz
$sudo mv ~/orientdb-community-2.2.20 /opt/orientdb
```
### CouchDB
CouchDB is an important NoSQL based open source database server developed in Erlang. It uses many protocols and formats to transfer, process and share data. JSON files are used to store the data, MapReduce is used as the base and JavaScript is used as the querying language.
#### Advantages
* It can store any kind of data.
* MapReduce helps in increasing its efficiency.
* The overall structure is very simple.
* Indexing and retrieval is fast.
* The following commands can help you to use CouchDB on your Ubuntu machine:
```
$echo “deb https://apache.bintray.com/couchdb-deb focal main” >> /etc/apt/sources.list
$sudo apt-get update
$sudo apt install apache2 couchdb -y
```
### Firebird
Firebird is an open source database management system that mainly works on relational databases. It is compatible with all operating systems like Linux, Windows and MacOS. It was originally forked from the Interbase repository, which was also an open source database.
#### Advantages
* The functionality of the database is not limited.
* It is a very stable and powerful database.
* The configuration and usage of the database is much simpler than other databases.
* The following commands can help you use Firebird on your Ubuntu machine:
```
$sudo apt-get update
$sudo apt-get install firebird2.5-superclassic
```
### Cassandra
Cassandra is owned and developed by Apache. This highly scalable, distributed, high performance database can handle large amounts of data and works really well. As it is distributed among many servers, it has no single point of failure. It is basically a NoSQL database, which implies it is not a relational database.
#### Advantages
* High performance
* High scalability
* Peer-to-peer architecture is used instead of master slave architecture
* The following commands can be helpful in using Firebird on your Ubuntu machine:
```
$curl https://www.apache.org/dist/cassandra/KEYS | sudo apt-key add -
$sudo apt-get update
$sudo apt-get install cassandra
$sudo systemctl enable cassandra
$sudo systemctl start cassandra
```
### PostgreSQL
Today PostgreSQL is one of the most popular open source relational database management systems. It is easily extensible and, at the same time, is compliant with SQL. More than 30 years of active development has gone into this DBMS.
### Advantages
* In Postgres we can store a wider variety of data compared to MySQL.
* It is largely compliant with the SQL standard.
* It is also highly expandable.
The following commands can be helpful for using PostgreSQL on your Ubuntu machine:
```
$sudo apt-get update
$sudo apt apt install postgresql postgresql-contrib
```
### CockroachDB
CockroachDB is a database built for reliability, i.e., it can survive any kind of adverse situation (just like cockroaches can survive any disastrous situation and multiply). This database can handle large amounts of data. Multicluster databases can also be built.
### Advantages
* Deployment is easy
* High consistency
* Transactions are distributed
* Availability is high
* It is also compatible with SQL
### Redis
Redis is an open source, key value based data storage database. This NoSQL database is really handy because it uses different keys of various types.
We’ve gone through the most well-known and popular open source database management systems that are being used to store and manage data. Learning about these different databases can be a lot of fun. Try the different options, and use the one that fits your requirements the best. Also, do check out the official documentation of these databases.
--------------------------------------------------------------------------------
via: https://www.opensourceforu.com/2022/09/are-you-familiar-with-these-popular-open-source-databases/
作者：[Jishnu Saurav Mittapalli][a]
选题：[lkxed][b]
译者：[译者ID](https://github.com/译者ID)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
[a]: https://www.opensourceforu.com/author/jishnu-saurav-mittapalli/
[b]: https://github.com/lkxed

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[#]: subject: "Are You Familiar with These Popular Open Source Databases?"
[#]: via: "https://www.opensourceforu.com/2022/09/are-you-familiar-with-these-popular-open-source-databases/"
[#]: author: "Jishnu Saurav Mittapalli https://www.opensourceforu.com/author/jishnu-saurav-mittapalli/"
[#]: collector: "lkxed"
[#]: translator: "toknow-gh"
[#]: reviewer: " "
[#]: publisher: " "
[#]: url: " "
你应该知道的主流开源数据库
======
*随着数据的飞速增长，数据的组织变得至关重要。本文将简要介绍当今软件开发中最流行的数据库。*
在软件系统中，数据被格式化地组织和存储，通过数据库可以以电子方式访问它们。因为数据已经成为一种非常重要的资产，对我们来说，掌握当今使用的各种数据库的基本知识是非常重要的。
我们要看的第一个数据库是 MySQL。
### MySQL
[MySQL 官网](https://www.mysql.com/cn/)
MySQL 是使用最广泛的开源数据库管理系统之一。它由<ruby>甲骨文公司<rt>Oracle Corporation</rt></ruby>所有。它可以在大多数主流操作系统上运行，如 Windows、MacOS、Linux 等。MySQL 既适用于小型应用，同时也能胜任大型应用。
#### 优点
* 适配各种操作系统。
* 适配多种编程语言，如 PHP，C，C++，Perl 等。
* 开源、免费。
* 它支持高达 8 百万 Tb 的巨大数据量。
* 可定制化。
* 比其他数据库快得多。
要在基于 Ubuntu 的计算机上安装并使用 MySQL，使用下面的命令：
```
$sudo apt update
$sudo apt install mysql-server
$sudo systemctl start mysql.service
```
### MariaDB
[MariaDB 官网](https://mariadb.org/)
MariaDB 是一款由 MySQL 的开发人员开发的开源关系型数据库，因其优秀的性能和与 MySQL 良好的兼容性而广受欢迎。它是当今大多数主要云产品的一部分，对其稳定性和性能起到重要作用。最近通过使用 Galera Cluster 技术，MariaDB 新增了集群功能。另外 MariaDB 还与 Oracle 数据库有（一定的）兼容性。
#### 优点
* 安装方便
* 支持大数据操作
* 高可扩展性
* 易于导入数据
要在基于 Ubuntu 的计算机上安装并使用 MariaDB，请使用以下命令:
```
$sudo apt update
$sudo apt install mysql-server
$sudo systemctl start mysql.service
```
### RethinkDB
[RethinkDB 官网](https://rethinkdb.com/)
RethinkDB 是一个开源、免费、分布式、基于文档的 NoSQL 数据库。它由 RethinkDB 公司开发。（LCTT 译注：RethinkDB 公司已于 2016 年倒闭。RethinkDB 数据库现作为开源项目继续维护。[消息来源](https://rethinkdb.com/blog/rethinkdb-shutdown/)）它可以存储具有动态模式的 JSON 文件。更重要的是，它可以将查询结果的实时更新推送给应用程序。由于它的分布式特性，它具有高度可扩展性。RethinkDB 提供了丰富的内置函数，使其成为一个高可用性的数据库。由于它是当今流行的数据库，学习如何使用它是很重要的。
#### 优点
* 适合于 Web 应用。
* 易于扩展。
* 内置函数多，可用性高。
* 基于 JSON 动态文档。
要在基于 Ubuntu 的计算机上使用 RethinkDB，下面的命令会有帮助：
```
# 添加软件仓库源
source /etc/lsb-release && echo "deb https://download.rethinkdb.com/repository/ubuntu-$DISTRIB_CODENAME $DISTRIB_CODENAME main" | sudo tee /etc/apt/sources.list.d/rethinkdb.list
# 下载并安装 RethinkDB 的 GPG 密钥
$wget -qO- https://download.rethinkdb.com/repository/raw/pubkey.gpg | sudo apt-key add -
$sudo apt update
$sudo apt-get install rethinkdb
$sudo systemctl start rethinkdb
```
### OrientDB
[OrientDB 官网](https://orientdb.org/)
OrientDB 是一个基于 Java 的开源 NoSQL 数据库管理系统。它支持多种数据模型，比如文档、字典、对象和图。它以图数据库的形式存储关系。下面的命令可以帮助你在 Ubuntu 机器上使用 OrientDB：
```
$sudo apt-get update
$wget -O orientdb-community-2.2.20.tar.gz http://orientdb.com/download.php?file=orientdb-community-2.2.20.tar.gz&os=linux
$tar -zxvf orientdb-community-2.2.20.tar.gz
$sudo mv ~/orientdb-community-2.2.20 /opt/orientdb
```
### CouchDB
[CouchDB 官网](https://couchdb.apache.org/)
CouchDB 是用 Erlang 开发的开源 NoSQL 数据库。它使用多种协议和格式来传输、处理和共享数据。它使用 JSON 格式存储数据，支持 MapReduce，并用 JavaScript 作为查询语言。
#### 优点
* 可以存储任何类型的数据。
* 支持 MapReduce，可以高效地处理数据。
* 整体结构非常简单。
* 索引和检索速度快。
下面的命令可以帮助你在 Ubuntu 机器上使用 CouchDB：
```
$echo "deb https://apache.bintray.com/couchdb-deb focal main" >> /etc/apt/sources.list
$sudo apt-get update
$sudo apt install apache2 couchdb -y
```
### Firebird
[Firebird 官网](https://firebirdsql.org/)
Firebird 是一个开源关系型数据库。它兼容所有操作系统，如 Linux、Windows 和 MacOS。它最初是从开源数据库 Interbase 派生而来的。
#### 优点
* 数据库功能不受限制。
* 非常稳定，功能强大。
* 配置和使用简单。
以下命令可以帮助你在 Ubuntu 机器上使用 Firebird：
```
$sudo apt-get update
$sudo apt-get install firebird2.5-superclassic
```
### Cassandra
[Cassandra 官网](https://cassandra.apache.org/_/index.html)
Cassandra 是一个 Apache 基金会旗下的 NoSQL 数据库。它具有高度可扩展性、分布式、高性能的特点，可以很好地处理大量数据。其分布式的特性，使它没有单点故障。
#### 优点
* 高性能。
* 高可扩展性。
* 采用点对点架构。
以下命令可以帮助你在 Ubuntu 机器上使用 Firebird：
```
$curl https://www.apache.org/dist/cassandra/KEYS | sudo apt-key add -
$sudo apt-get update
$sudo apt-get install cassandra
$sudo systemctl enable cassandra
$sudo systemctl start cassandra
```
### PostgreSQL
[PostgreSQL 官网](https://www.postgresql.org/)
如今，PostgreSQL 是最流行的开源关系数据库管理系统之一。它易于扩展，同时还与 SQL 兼容。这个数据库管理系统经过了 30 多年的积极开发。
#### 优点
* 与 MySQL 相比，Postgres 可以存储更多种类的数据。
* 支持几乎所有的 SQL 特性。
* 高度可扩展。
下面的命令可以帮助你在 Ubuntu 机器上使用 PostgreSQL：
```
$sudo apt-get update
$sudo apt apt install postgresql postgresql-contrib
```
### CockroachDB
[CockroachDB 官网](https://www.cockroachlabs.com/#)
CockroachDB 是一个为可靠性而生的数据库。它可以像<ruby>蟑螂<rt>cockroach</rt></ruby>一样在灾难性的情况下顽强生存、蓬勃发展。它可以处理大量的数据。还可以构建多集群数据库。
#### 优点
* 很容易部署。
* 高一致性。
* 分布式事务。
* 高可用性。
* 兼容 SQL。
### Redis
[Redis 官网](https://redis.io/)
Redis 是一个基于键值的开源 NoSQL 数据存储数据库。它支持各种类型的键，使用非常方便。
### 结语
我们已经浏览了最知名和最流行的开源数据库管理系统。了解这些不同的数据库非常有趣。尝试不同的选择，发现最适合你需求的数据库。另外，一定要查看这些数据库的官方文档。
--------------------------------------------------------------------------------
via: https://www.opensourceforu.com/2022/09/are-you-familiar-with-these-popular-open-source-databases/
作者：[Jishnu Saurav Mittapalli][a]
选题：[lkxed][b]
译者：[toknow-gh](https://github.com/toknow-gh)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
[a]: https://www.opensourceforu.com/author/jishnu-saurav-mittapalli/
[b]: https://github.com/lkxed