Introduction to Database System The data-base environment has all of the following components except: users separate files None of these data base data-base administrator users separate files None of these data base data-base administrator ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Relationship classes are associations between entity classes. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The master list of an indexed file contains only a list of keys and record numbers is sorted in ascending order both (b) and (c) has a number assigned to each record None of these contains only a list of keys and record numbers is sorted in ascending order both (b) and (c) has a number assigned to each record None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The activity of a file None of these 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 refers to how closely the files fits into the allocated if high, reduces processing efficiency for sequential and nonsequential files None of these 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 refers to how closely the files fits into the allocated if high, reduces processing efficiency for sequential and nonsequential files 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. None of these Network Relational Object-Oriented Hierarchical None of these Network Relational Object-Oriented Hierarchical 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? Data field None of the listed here Characters Bits Data field None of the listed here Characters Bits ANSWER DOWNLOAD EXAMIANS APP
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