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? Bits Data field Characters None of the listed here Bits Data field Characters None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relational database management (RDBM) package manages data in more than one file at once. How does it organize these file? As None of these tables both (a) and (b) relations tuple None of these tables both (a) and (b) relations tuple ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Because it contains a description of its own structure, a database is considered to be ________ . an application program self-describing metadata compatible described an application program self-describing metadata compatible described ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The activity of a file refers to how closely the files fits into the allocated is a low percentages of number of records added or deleted from a file None of these is a measure of the percentage of existing records updated during a run if high, reduces processing efficiency for sequential and nonsequential files refers to how closely the files fits into the allocated is a low percentages of number of records added or deleted from a file None of these is a measure of the percentage of existing records updated during a run if high, reduces processing efficiency for sequential and nonsequential files ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The different classes of relations created by the technique for preventing modification anomalies are called: functional dependencies. referential integrity constraints. None of these normal forms. functional dependencies. referential integrity constraints. None of these normal forms. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The highest level in the hierarchy of data organization is called data bank data file database data record data bank data file database data record ANSWER DOWNLOAD EXAMIANS APP
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