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=== 資料庫引擎熱門程度排行 ===
[http://db-engines.com/en/ranking DB-Engines Ranking - popularity ranking of database management systems] 每月更新一次 {{access | date = 20152020-0407-1812}}
* 排名計算方式: [http://db-engines.com/en/ranking_definition DB-Engines Ranking - Method]
 
[https://www.statista.com/statistics/809750/worldwide-popularity-ranking-database-management-systems/ • Most popular database management systems globally 2020 | Statista] {{access | date = 2020-07-12}}
* 排名計算方式: website mentions, search frequency, technical discussion frequency, current job offers, professional network profiles, social network relevance.
=== 網路基礎建設 ===

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