Aspire Faculty ID #18872 · Topic: UGC NET Computer Science Nov 2021 (Paper II) · Just now
UGC NET Computer Science Nov 2021 (Paper II)

Consider following two statements:

Statement I: Relational database schema represents the logical design of the database.

Statement II: Current snapshot of a relation only provides the degree of the relation.

In the context to the above statements, choose the correct option from the options given below:

Solution

Statement I is true because relational database schema represents the logical structure or logical design of the database.

Statement II is false because current snapshot of a relation means relation instance.

It gives the current set of tuples in the relation.

Degree means number of attributes, which is part of schema, not only the current snapshot.

Therefore, Statement I is true and Statement II is false.

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