Introduction to Database System Entities can be associated with one another in which of the following? Relationships Identifiers Attributes Entities Relationships Identifiers Attributes Entities ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, GRANT command is used to grant system privileges, roles, and object privileges to uses and roles allow user to create databases None of the listed here allow user to access databases grant system privileges, roles, and object privileges to uses and roles allow user to create databases None of the listed here allow user to access databases ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Sort/report generators require more disk space than index/report generators none of the listed here do not need to sort before generating a report are faster than index/report generators require more disk space than index/report generators none of the listed here do not need to sort before generating a report are faster than index/report generators ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A scheme describes None of these record relationships All of these data elements records and files None of these record relationships All of these data elements records and files ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Every time attribute A appears, it is matched with the same value of attribute B, but not the same value of attribute C. Therefore, it is true that: A → A → (B,C). (B,C) → A → A → A → (B,C). (B,C) → A → ANSWER DOWNLOAD EXAMIANS APP
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