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class hirarchy is a method of classifying the entities into subclasses

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In a relational database management system (RDBMS), the class hierarchy typically includes the following levels: database server, databases, tables (or relations), columns (or attributes), and rows (or tuples). The database server manages connections, access control, and query processing. Databases contain tables, which store data arranged in rows and columns. Columns define the attributes, while rows represent individual records.

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Q: What is the class hierarchy in dbms?
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