Introduction to Database System Keys made up of two or more attributes are called composite keys. True False True False 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 A _____ database does not use pointers or physical links, but instead finds related records by examining the contents of fields. Network Hierarchical None of these Object-Oriented Relational Network Hierarchical None of these Object-Oriented Relational 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 If attribute A determines both attributes B and C, then it is also true that: C → A → (B,C) → B → C → A → (B,C) → B → ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ means that one record in a particular record type is related to only one record of another record type. None of these Many-to-one relationship One-to-one relationship Many-to-many relationship One-to-many relationship None of these Many-to-one relationship One-to-one relationship Many-to-many relationship One-to-many relationship ANSWER DOWNLOAD EXAMIANS APP
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