Introduction to Database System A relation is considered a: two-dimensional table. one-dimensional table. three-dimensional table. Column. two-dimensional table. one-dimensional table. three-dimensional table. Column. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The way a particular application views the data from the data base that the application uses is a : schema subschema relational model None of these module schema subschema relational model None of these module ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The activity of a file is a measure of the percentage of existing records updated during a run is a low percentages of number of records added or deleted from a file None of these if high, reduces processing efficiency for sequential and nonsequential files refers to how closely the files fits into the allocated is a measure of the percentage of existing records updated during a run is a low percentages of number of records added or deleted from a file None of these if high, reduces processing efficiency for sequential and nonsequential files refers to how closely the files fits into the allocated ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to select data in rows and column from one or more tables? CHOOSE BROWSE None of these SELECT LIST CHOOSE BROWSE None of these SELECT LIST ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ Contains fields of data about one entity. File Fields Document None of these Record File Fields Document None of these Record ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A compound key both (a) and (b) uniquely identifies an item in a list None of these is a combination of each unique key is made up a several pieces of information both (a) and (b) uniquely identifies an item in a list None of these is a combination of each unique key is made up a several pieces of information ANSWER DOWNLOAD EXAMIANS APP
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