Introduction to Database System If attributes A and B determine attribute C, then it is also true that: A → C is a determinant. B → (A,B) is a composite determinant. A → C is a determinant. B → (A,B) is a composite determinant. 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. Many-to-one relationship One-to-many relationship One-to-one relationship None of these Many-to-many relationship Many-to-one relationship One-to-many relationship One-to-one relationship None of these Many-to-many relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The master list of an indexed file is sorted in ascending order contains only a list of keys and record numbers both (b) and (c) has a number assigned to each record None of these is sorted in ascending order contains only a list of keys and record numbers both (b) and (c) has a number assigned to each record None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to select only one copy of each set of duplicable rows SELECT DIFFERENT All of these SELECT UNIQUE None of these SELECT DISTINCT SELECT DIFFERENT All of these SELECT UNIQUE None of these SELECT DISTINCT ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not considered to be a basic element of an enterprise-class database system? Database applications DBMS Users COBOL programs Database applications DBMS Users COBOL programs ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain? Characters Bits None of the listed here Data field Characters Bits None of the listed here Data field ANSWER DOWNLOAD EXAMIANS APP
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