Logical Database Design Well-structured relations encourage anomalies of data. False True False True ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A primary key may be null. True False True False ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design When mapping a binary many-to-many relationship into a relation which of the following is true? Three relations are created. Four relations are created. One relation is created. Two relations are created. Three relations are created. Four relations are created. One relation is created. Two relations are created. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design Normalization is a formal process for deciding which attributes should be grouped together in a relation. True False True False ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design The entity integrity rule states that: no primary key attribute may be null. no primary key may be unique. no primary key may be equal to a value in a foreign key. no primary key can be composite. no primary key attribute may be null. no primary key may be unique. no primary key may be equal to a value in a foreign key. no primary key can be composite. 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. True False True False ANSWER DOWNLOAD EXAMIANS APP
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