1.开源数据库：
开源数据库是一个任何人都可以轻松查看源代码的数据库，它是开放的并且可以免费下载。此外，对于社区版本，会收取一些小的额外费用和负担得起的费用。开源数据库为最终用户提供有限的技术支持。此处安装和更新由用户管理。例如：MYSQL、PostgreSQL、MongoDB 等。
2. 商业数据库：
商业数据库是仅为商业目的而创建的数据库。它们是优质的，不像开源数据库那样免费。商业数据库保证提供技术支持。在此安装和更新由软件供应商管理。例如：Oracle、IBM DB2 等。
开源数据库和商业数据库的区别：
| Open Source Database | Commercial Database |
|---|---|
| In open source Database anyone can easily view Source code of it. | Commercial Database are that which has been created for Commercial purpose only. |
| Examples: MYSQL, PostgreSQL, MongoDB etc. | Examples: Oracle, DB2, Splunck etc. |
| They are free or have additional and affordable cost. | They are premium and are not free like open source database. |
| It provide limited technical support. | It provide guaranteed technical support. |
| In this software is available under free licensing. | In this Software is available under high licensing cost. |
| In this User’s needs to rely on Community Support. | In this user’s get dedicated support from Vendor’s from where one’s buy. |
| In this Installation and Updates are administrated by user. | In this Installation and updates are administrated by Software Vendor. |
哪个数据库更好：商业或开源数据库：
总之，重要的是要记住商业和开源数据库都有自己的优点和缺点。如果我们考虑哪个数据库更好，那么在大多数情况下，与商业数据库相比，选择开源是有意义的，因为：
- 开源数据库具有成本效益。
- 更好的质量源代码。
- 更安全。
- 更优选。