Introduction to Database System The activity of a file if high, reduces processing efficiency for sequential and nonsequential files None of these refers to how closely the files fits into the allocated is a low percentages of number of records added or deleted from a file is a measure of the percentage of existing records updated during a run if high, reduces processing efficiency for sequential and nonsequential files None of these refers to how closely the files fits into the allocated is a low percentages of number of records added or deleted from a file is a measure of the percentage of existing records updated during a run ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A database has data and relationships. False True False True 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 All of these SELECT DISTINCT None of these SELECT UNIQUE SELECT DIFFERENT All of these SELECT DISTINCT None of these SELECT UNIQUE SELECT DIFFERENT ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The Management Information system (MIS) structure with one main computer system is called a decentralized MIS structure centralized MIS structure hierarchical MIS structure distributed MIS structure decentralized MIS structure centralized MIS structure hierarchical MIS structure distributed MIS structure ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In which of the following is a single-entity instance of one type of related to a single-entity instance of another type? Composite Relationship Many-to-Many Relationship One-to-One Relationship One-to-Many Relationship Composite Relationship Many-to-Many Relationship One-to-One Relationship One-to-Many Relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The language used in application programs to request data from the DBMS is referred to as the DDL DML All of the listed here query language DDL DML All of the listed here query language ANSWER DOWNLOAD EXAMIANS APP
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