The logical design, and the snapshot of the data at a given instant in time is known as?a.Schema and Instanceb.Domain and Schemac.Instance and Relationd.Relation and Schema
Question
The logical design, and the snapshot of the data at a given instant in time is known as?a.Schema and Instanceb.Domain and Schemac.Instance and Relationd.Relation and Schema
Solution
The correct answer is a. Schema and Instance.
The logical design of a database is referred to as a schema. It defines how the data is organized and how the relations among them are associated. It formulates all the constraints that are to be applied on the data.
An instance of a database is a snapshot of the database at a given point in time. It is the set of information that is currently stored in the database.
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