Logical Database Design A relation has which of the following properties? Each relation has a unique name. The order of the columns is significant. Attributes can have the same name within a given table. Each row is not unique. Each relation has a unique name. The order of the columns is significant. Attributes can have the same name within a given table. Each row is not unique. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A null value is assigned when no other value applies. True False True False ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design Relations are: four-dimensional tables. five-dimensional tables. three-dimensional tables. two-dimensional tables. four-dimensional tables. five-dimensional tables. three-dimensional tables. two-dimensional tables. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design When mapping a multivalued attribute into a relation which of the following is true? 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. Three relations are created. ANSWER DOWNLOAD EXAMIANS APP
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 The relational model consists of: data in the form of tables. data redundancy. unorganized data. operations using non-SQL languages. data in the form of tables. data redundancy. unorganized data. operations using non-SQL languages. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS