📅  最后修改于: 2020-11-19 09:19:27             🧑  作者: Mango
MySQL和Oracle是小型和大型公司中使用的两个著名的关系数据库。尽管Oracle Corporation支持两个数据库,但它们也有很多差异。与MySQL相比,Oracle是更强大的软件。在本节中,我们将基于各种参数比较MySQL和Oracle数据库系统之间的差异。
MySQL是流行的数据库管理系统,用于管理关系数据库。它是Oracle公司支持的开源数据库软件。与Microsoft SQL Server和Oracle Database相比,它是快速,可伸缩且易于使用的数据库管理系统。它通常与PHP脚本一起使用,以创建功能强大且动态的服务器端或基于Web的企业应用程序。
它由瑞典公司MySQL AB开发和支持,并用C和C++编程语言编写。许多大小公司都使用MySQL。 MySQL支持使用C,C++和Java语言的许多操作系统,例如Windows,Linux,MacOS等。
MySQL数据库的功能
MySQL数据库的基本功能如下:
Oracle是一个关系数据库系统,提供了自动驱动,自我保护,自我修复,旨在消除易于出错的手动数据库管理。 Oracle是可以在各种操作系统上运行的跨平台数据库系统。它允许快速安全地存储和检索数据。它对学生免费,但不能用于商业目的。它是第一个为商业目的而开发的,使用查询语言来操纵数据的数据库软件。 Oracle于1980年发布,具有基本的SQL功能。该软件是可扩展的,可移植的,分布式的和可编程的。
Oracle数据库的功能
下面给出了Oracle数据库的基本功能:
让我们以下面的表格形式总结MySQL和Oracle之间的普遍差异:
Comparison Basis | MySQL | Oracle |
---|---|---|
Introduction | It is an open-source, cross-platform relational database management system built by Swedish Company MYSQL AB and currently supported by the Oracle. | Oracle is a relational database system (RDBMS) that implements object-oriented features. It allows to store and retrieve data quickly and safely. It can handle a large amount of data. |
Release | It was released in 1995. | It was released in 1980. |
Cost | It is free and open-source. It is licensed under the GNU. | It is licensed for commercial purposes, but it provides the express edition for free. The express edition is recommended for students only. |
Scalability | MySQL database is used for small and big businesses. | Oracle database is used for very large scale deployments. |
Data Partitioning | It does not support data partitioning. | It supports data partitioning. |
Security | It requires a username, password, and host to access the database. | It requires a username, password, and profile validation to access the database. |
System Type | It only works with the static system. | It can work with both static and dynamic systems. |
Null Value | MySQL supports the null value. | Oracle does not support the null value. |
Character | MySQL support only two characters that are CHAR and VARCHAR. | Oracle supports four different characters that are CHAR, VARCHAR2, NCHAR, and NVARCHAR2. |
Backup Mechanism | It offers only two backup mechanisms that are mysqlhotcopy and mysqldump. | It offers many backup mechanisms that are backup, hot backup, import, export, etc. |
XML Support | It does not support XML. | It supports XML. |
Storage Features | It contains only a few storage features like tablespace, synonym, packages, and many others. | It supports many storage features that are tablespace, synonym, packages, etc. |
Locking facility | MySQL has only a table locking facility. | Oracle has table locking as well as a row locking facility. |
Language support | MySQL support only SQL language. | Oracle supports both SQL and PL/SQL languages. |
Operating System Support | It supports the following Operating System:
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It supports the following Operating System:
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