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What are the different types of databases?

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There are three kind of database mainly . First is network database it which we consider data is linked to other data by the means of some link.
Second is object oriented database, that helps to include features like abstraction, encapsulation etc.
Third is Hierarchical database , that follows a simple sequence or hierarchy of data , there are nodes and a main root.
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This is the most common of all the different types of databases. In this, the data in a relational database is stored in various data tables. Each table has a key field which is used to connect it to other tables. Hence all the tables are related to each other through several key fields.
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