Logical Database Design A null value is assigned when no other value applies. False True False True ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design When mapping a ternary relationship with an associative entity into a relation which of the following is true? Two relations are created. 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. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design When mapping a many-to-many unary relationship into a relation which of the following is true? One relation is created. Two relations are created. Three relations are created. Four relations are created. One relation is created. Two relations are created. Three relations are created. Four relations are created. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A foreign key is which of the following? An attribute that serves as the primary key of another relation An attribute that serves no purpose Any attribute The same thing as a primary key An attribute that serves as the primary key of another relation An attribute that serves no purpose Any attribute The same thing as a primary key ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design The primary key in a relation does not need to be underlined. False True False True ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design The relational model consists of: data redundancy. operations using non-SQL languages. unorganized data. data in the form of tables. data redundancy. operations using non-SQL languages. unorganized data. data in the form of tables. ANSWER DOWNLOAD EXAMIANS APP
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