Question: Which of the given statements is incorrect about Database Types?

Options

A : Relational databases are more useful in the development of biological databases

B : The tables in relational database are carefully indexed and cross-referenced with each other, sometimes using additional tables, so that each item in the database has a unique set of identifying features

C : The relational database orders data in tables made up of rows giving specific items in the database, and columns giving the features as attributes of those items

D : The two principal types of DBs are the relational and object-oriented databases

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