June database Ranking: PostgreSQL and MongoDB scores rare decline

DB-Engines database update popularity rankings published in June, before the top 20 are as follows:

And basically the same overall ranking compared to last month, in which the top three Oracle, MySQL and Microsoft SQL Server is also the largest increase in score three databases, increased scores were 13.67,4.67 and 15.57, three scores were also It has more than a thousand.

It is noteworthy that Microsoft's family of Microsoft SQL Server, its score this year, has maintained a steady and impressive growth, while Oracle and MySQL score although this month presents a rising trend, but compared to last year's data, still It is declined.

And it has been the steady growth of PostgreSQL and MongoDB, although rankings did not fall, but they score, it was an unusual reduction, decreased by 2.27 and 4.17 points score of 476.62 and 403.90 respectively. You know, PostgreSQL in the last 10 months has maintained a continuous record scores rise. But if you compare to last year, an increase is very clear.

So for PostgreSQL and MongoDB trend is still holding an optimistic attitude.

The next major release of PostgreSQL  PostgreSQL 12 just last month released the first Beta test version , which contains a preview of all the features available in the final version.

PostgreSQL 12 noteworthy new features include:

• Improve the overall performance of the standard B-tree index
• New concurrency rebuild the index function
• Inline WITH query (common table expression)
• Support the use of foreign key references to the partition table

• Supports SQL / JSON query specification of JSON route

• Introducing into the table memory interface

Changes related to other areas, as well as the full ranking, please see  https://db-engines.com/en/ranking .

Next, look at the top ten trends Figure :

可以看到，Microsoft SQL Server、PostgreSQL 和 MongoDB 有着比较明显的增长趋势。

最后看看每种数据库的排名情况。

关系数据库前 10 名如下：

Key-Value 数据库前 10 名如下：

文档数据库前 10 名如下：

图数据库前 10 名如下：

时序数据库前 10 名如下：

DB-Engines 根据受欢迎程度对数据库管理系统进行排名，排名每月更新一次。排名的数据依据 5 个不同的指标：

1. Google 以及 Bing 搜索引擎的关键字搜索数量

2. Google Trends 的搜索数量

3. Indeed 网站中的职位搜索量

4. LinkedIn 中提到关键字的个人资料数

5. Stackoverflow 上相关的问题和关注者数量

这份榜单分析旨在为数据库相关从业人员提供一个技术方向的参考，其中涉及到的排名情况并非基于产品的技术先进程度或市场占有率等因素。无论排名先后，选择适合与企业业务需求相比配的技术，才是最重要的。