📜  Cassandra 和 MySQL 的区别

📅  最后修改于: 2021-09-12 11:06:37             🧑  作者: Mango

1. 卡桑德拉:
Cassandra 是一个免费、开源、分布式、广泛的列存储、NoSQL 数据库管理系统。它由 Apache 软件基金会开发,最初于 2008 年 7 月发布。Cassandra 旨在处理跨多个商用服务器的大量数据,提供高可用性且无单点故障。

2. MySQL:
MySQL 是一种基于结构化查询语言 (SQL) 的开源关系数据库管理系统 (RDBMS)。它由oracle 公司开发和管理,于1995 年5 月23 日首次发布。它被广泛应用于许多小型和大型工业应用程序,能够处理大量数据。

Cassandra 和 MySQL 的区别:

S.NO. Cassandra MySQL
1. Developed by Apache Software foundation and released on July 2008. Developed by Oracle and released on May 1995.
2. Cassandra is written only in Java language. MySQL is written in C and C++ languages.
3. Cassandra is a NoSQL type database. MySql is a RDBMS type database.
4. It does not provides ACID properties but can be tuned to support ACID properties. MySQL provides ACID properties.
5. Read performance is highly efficient is Cassandra as it takes O(1) time. MySQl requires reading from multiple tables using JOIN. Hence, to read it takes O(log(n)) time.
6. Writing performance in Cassandra is also very high and efficient. Writing in MySQL requires a search first which slows down write performance.
7. Cassandra does not provides the concept of Referential Integrity. Hence no Foreign Keys. MySQL provides the concept of Referential Integrity and have Foreign keys.
8. Cassandra provides Eventual Consistency and Immediate Consistency methods to ensure consistency in a distributed system. MySQL only provides Immediate Consistency method to ensure consistency in a distributed system. 9. Server operating systems for Cassandra are BSD, Linux, OS X, Windows. Server operating systems for MySQL are FreeBSD, Linux, OS X, Solaris, Windows. 10. Famous companies like Hulu, Instagram, Intuit, Netflix, Reddit, etc uses Cassandra. Famous companies like Airbnb, Pinterest, Slack, Udemy, Twitter, etc uses MySQL.