Logical Database Design Weak entities do not get mapped into a relation. False True False True ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A foreign key may be null and still adhere to the referential integrity constraint. True False True False ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design The relational model consists of: operations using non-SQL languages. 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. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design An enterprise key is a primary key whose value is unique for a given relation. False True False True ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A relation has which of the following properties? The order of the columns is significant. Each relation has a unique name. Each row is not unique. Attributes can have the same name within a given table. The order of the columns is significant. Each relation has a unique name. Each row is not unique. Attributes can have the same name within a given table. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A primary key may be null. False True False True ANSWER DOWNLOAD EXAMIANS APP
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