The DB-Engines Ranking ranks database management systems by popularity, covering over 380 systems. The ranking criteria include number of

search engine A search engine is a software system designed to carry out web searches. They search the World Wide Web in a systematic way for particular information specified in a textual web search query. The search results are generally presented in a ...

results when searching for the system names,

Google Trends Google Trends is a website by Google that analyzes the popularity of top web search query, search queries in Google Search across various regions and languages. The website uses graphs to compare the search volume of different queries over time. ...

Stack Overflow In software, a stack overflow occurs if the call stack pointer exceeds the stack bound. The call stack may consist of a limited amount of address space, often determined at the start of the program. The size of the call stack depends on many fac ...

discussions, job offers with mentions of the systems, number of profiles in professional networks such as

LinkedIn LinkedIn () is an American business and employment-oriented online service that operates via websites and mobile apps. Launched on May 5, 2003, the platform is primarily used for professional networking and career development, and allows job se ...

, mentions in social networks such as

Twitter Twitter is an online social media and social networking service owned and operated by American company Twitter, Inc., on which users post and interact with 280-character-long messages known as "tweets". Registered users can post, like, and ...

. The ranking is updated monthly. It has been described and cited in various database-related articles. By grouping over specific database features like database model or type of license, regularly published statistics reveal historical trends which are used in strategic statements.

History

The DB-Engines DBMS portal was created in 2012 and is maintained by the Austrian consulting company Solid IT. Based on its ranking, DB-Engines grants a yearly award for the system that gained most in popularity within a year. The award winners are: * 2013 -

MongoDB MongoDB is a source-available cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses JSON-like documents with optional schemas. MongoDB is developed by MongoDB Inc. and licensed under the Serve ...

* 2014 -

* 2015 -

Oracle An oracle is a person or agency considered to provide wise and insightful counsel or prophetic predictions, most notably including precognition of the future, inspired by deities. As such, it is a form of divination. Description The word '' ...

* 2016 -

Microsoft SQL Server Microsoft SQL Server is a relational database management system developed by Microsoft. As a database server, it is a software product with the primary function of storing and retrieving data as requested by other software applications—which ma ...

* 2017 -

PostgreSQL PostgreSQL (, ), also known as Postgres, is a free and open-source relational database management system (RDBMS) emphasizing extensibility and SQL compliance. It was originally named POSTGRES, referring to its origins as a successor to the In ...

* 2018 -

* 2019 -

MySQL MySQL () is an open-source relational database management system (RDBMS). Its name is a combination of "My", the name of co-founder Michael Widenius's daughter My, and "SQL", the acronym for Structured Query Language. A relational database o ...

* 2020 -

* 2021 -

Snowflake A snowflake is a single ice crystal that has achieved a sufficient size, and may have amalgamated with others, which falls through the Earth's atmosphere as snow.Knight, C.; Knight, N. (1973). Snow crystals. Scientific American, vol. 228, no. ...

Methodology

The ranking comes from an

average In ordinary language, an average is a single number taken as representative of a list of numbers, usually the sum of the numbers divided by how many numbers are in the list (the arithmetic mean). For example, the average of the numbers 2, 3, 4, 7, ...

of the following parameters after normalization: # Number of mentions in search engines queries #*

Google Google LLC () is an American multinational technology company focusing on search engine technology, online advertising, cloud computing, computer software, quantum computing, e-commerce, artificial intelligence, and consumer electronics. ...

Bing Bing most often refers to: * Bing Crosby (1903–1977), American singer * Microsoft Bing, a web search engine Bing may also refer to: Food and drink * Bing (bread), a Chinese flatbread * Bing (soft drink), a UK brand * Bing cherry, a varie ...

Yandex Yandex LLC (russian: link=no, Яндекс, p=ˈjandəks) is a Russian multinational technology company providing Internet-related products and services, including an Internet search engine, information services, e-commerce, transportation, map ...

#Frequency of searches #*

# Number of related questions and the number of interested users #*

#* DBA Stack Exchange # Number of job postings #*

Indeed Indeed is an American worldwide employment website for job listings launched in November 2004. It is an independent subsidiary of multinational holding Recruit (company), Recruit Co. Ltd. It is co-headquartered in Austin, Texas, and Stamford, Co ...

Simply Hired Simply Hired is an employment website utilizing desktop and mobile application for an online recruitment advertising network based in Sunnyvale, California. The company was launched in 2003. In 2016, Recruit Holdings Co., Ltd. (owner of Inde ...

# Number of profiles in professional networks #*

Upwork Upwork Global Inc., formerly Elance-oDesk, is an American freelancing platform headquartered in Santa Clara and San Francisco, California. The company was formed in 2013 as Elance-oDesk, after the merger of Elance Inc. and oDesk Corp. The merg ...

# Number of mentions in social networks #*

References

External links

* {{official website, https://db-engines.com/ Database management systems Lists of database management software Relational database management systems