Introduction to Database System Which of the following is not characteristic of a relational database model? complex logical relationships records treelike structure tables complex logical relationships records treelike structure tables 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. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The functional dependency R → S means that the value of S can be determined when we are given a value of R. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Given the functional dependency R → S , R is called the determinant. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In order to use a record management system All of these You need to understand the low-level details of how information in stored Both (a) and (b) None of these You need to understand the model the record management system uses. All of these You need to understand the low-level details of how information in stored Both (a) and (b) None of these You need to understand the model the record management system uses. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity? Archetype entity Instance entity Subtype entity Supertype entity Archetype entity Instance entity Subtype entity Supertype entity ANSWER DOWNLOAD EXAMIANS APP
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