Introduction to Database System Which of the following contains a complete record of all activity that affected the contents of a database during a certain period of time? None of these transaction log data manipulation language report writer query language None of these transaction log data manipulation language report writer query language ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relation, the rows are sometimes called "records". True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A primary key is a composite key that was selected to be the main identifier for the relation. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entity instances are associated by relationship classes. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Given the functional dependency R → (S,T) , then it is also true that R → S. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ means that one record in a particular record type may be related to more than one record of another record type. Many-to many relationship One-to-one relationship Many-to-one relationship One-to-many relationship Many-to many relationship One-to-one relationship Many-to-one relationship One-to-many relationship ANSWER DOWNLOAD EXAMIANS APP
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