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 One-to-Many Relationship One-to-One Relationship Many-to-Many Relationship Composite Relationship One-to-Many Relationship One-to-One Relationship Many-to-Many Relationship ANSWER DOWNLOAD EXAMIANS APP
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? transaction log None of these query language data manipulation language report writer transaction log None of these query language data manipulation language report writer ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following hardware components is the most important to the operation of a database management system? high speed, large-capacity disk printer plotter high-resolution video display high speed, large-capacity disk printer plotter high-resolution video display ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A logical schema describes how data is actually stored on disk is the entire database None of these is a standard way of organizing information into accessible parts All of these describes how data is actually stored on disk is the entire database None of these is a standard way of organizing information into accessible parts All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a restriction for a table to be a relation? The cells of the table must contain a single value. No two rows in a table may be identical. All of the entries in any column must be of the same kind. The columns must be ordered. The cells of the table must contain a single value. No two rows in a table may be identical. All of the entries in any column must be of the same kind. The columns must be ordered. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The logical data structure with a one-to-many relationship is a network relational tree chain network relational tree chain ANSWER DOWNLOAD EXAMIANS APP