數據庫型別主要可分爲:
網狀數據庫(Network Database)、
關係數據庫(Relational Database)、
樹狀數據庫(Hierarchical Database)、
物件導向數據庫(Object-oriented Database)等。
商業應用中主要是關係數據庫,比如DB2、Sybase、MS SQL Server、Informax、MySQL等。
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