GATE | GATE CS 2012 | Question 14

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Given the basic ER and relational models, which of the following is INCORRECT?
An attribute of an entity can have more than one value
An attribute of an entity can be composite
In a row of a relational table, an attribute can have more than one value
In a row of a relational table, an attribute can have exactly one value or a NULL value

This question is part of this quiz :

GATE CS 2012,ER and Relational Models
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DBMS Quiz
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