Logical Database Design A primary key is which of the following? A derived attribute An attribute that uniquely identifies each column An attribute that uniquely identifies each row Any attribute A derived attribute An attribute that uniquely identifies each column An attribute that uniquely identifies each row Any attribute ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A composite attribute does not get mapped into a relation. True False True False ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design The primary key in a relation does not need to be underlined. True False True False ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design If a relation is in third normal form, it does not need to be in second normal form. False True False True ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A transitive dependency is which of the following? A relation that is in first normal form. A functional dependency between two or more nonkey attributes. A relation that is in second normal form. A functional dependency between two or more key attributes. A relation that is in first normal form. A functional dependency between two or more nonkey attributes. A relation that is in second normal form. A functional dependency between two or more key attributes. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A primary key may be null. True False True False ANSWER DOWNLOAD EXAMIANS APP
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