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Question

In contemporary databases the top level of the hierarchy consists of ______ each of which can contain _____

a.

Catalogs, schemas

b.

Schemas, catalogs

c.

Environment, schemas

d.

Schemas, Environment

Posted under DBMS

Answer: (a).Catalogs, schemas

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Q. In contemporary databases the top level of the hierarchy consists of ______ each of which can contain _____

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