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Which of the following is true for a relation in First Normal Form (1NF)?Question 13Answera.It contains no repeating groups or arraysb.It has a primary keyc.All attributes depend on the whole primary keyd.It contains no transitive dependencies

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Which of the following is true for a relation in First Normal Form (1NF)?Question 13Answera.It contains no repeating groups or arraysb.It has a primary keyc.All attributes depend on the whole primary keyd.It contains no transitive dependencies

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Solution

The statement that is true for a relation in First Normal Form (1NF) is:

a. It contains no repeating groups or arrays

Explanation: The First Normal Form (1NF) is a property of a relation in a relational database. A relation is in first normal form if and only if the domain of each attribute contains only atomic (indivisible) values, and the value of each attribute contains only a single value from that domain. This means there are no repeating groups or arrays.

The other options are characteristics of higher normal forms. For example, having a primary key and all attributes depending on the whole primary key are characteristics of Second Normal Form (2NF). The absence of transitive dependencies is a characteristic of Third Normal Form (3NF).

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Similar Questions

Which of the following describes a relation is in first normal form (1NF)?Select one:a.It has no identical rowsb.It has no repeating groupsc.It has no partial functional dependenciesd.It has no transitive functional dependencies

When is a relation considered to be in first normal form (1NF)?Select one:a.When there are no dependencies of an attribute on another attribute in the tableb.When there are no compound primary keys or partial key that can have a null valuec.When there are no partial dependencies or transitive dependencies on a primary keyd.When there are no repeating groups of values of an attribute in one or more columns

When is a relation considered to be in second normal form (2NF)? (Select the best answer.)Select one:a.When there are no repeating groups in a relationb.When there are no transitive functional dependenciesc.When there are no dependencies on part of the primary keyd.When there are no dependent attributes in transitive relation

WHAT IS TRUE ABOUT 2NF?Select one:a. BOTH OF THE ABOVEb. RELATION SHOULD BE IN 1NF.c. ALL ATTRIBUTES OTHER THAN PRIMARY KEY ARE FULLY FUNCTIONALLY DEPENDS ON PRIMARY KEYd. NONE OF THE ABOVE

Which normal form ensures that there is no non-prime attribute that is transitively dependent on the primary key?a.First Normal Form (1NF)b.Second Normal Form (2NF)c.Third Normal Form (3NF)d.Boyce-Codd Normal Form (BCNF)

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