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Which of the following is a group of one or more attributes that uniquely identifies a row?

A. Key

B. Determinant

C. Tuple

D. Relation

Answer: Option A

Solution (By Examveda Team)

Key
- A key is a group of one or more attributes that uniquely identifies a row in a table.
Determinant
- A determinant is an attribute in a relation that determines the values of other attributes.
Tuple
- A tuple is a row in a table that contains a set of attributes.
Relation
- A relation is a table in a relational database that contains rows and columns.
Conclusion: The correct option is Key as it is the group of one or more attributes that uniquely identifies a row in a table.

This Question Belongs to Database >> The Relational Model And Normalization

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