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 if high, reduces processing efficiency for sequential and nonsequential files refers to how closely the files fits into the allocated None of these 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 if high, reduces processing efficiency for sequential and nonsequential files refers to how closely the files fits into the allocated None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key is a group of one or more attributes that uniquely identifies a row. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Embedded pointer provide a physical record key a secondary access path an inverted index None of these All of these a physical record key a secondary access path an inverted index None of these All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If attributes A and B determine attribute C, then it is also true that: (A,B) is a composite determinant. C is a determinant. A → B → (A,B) is a composite determinant. C is a determinant. A → B → ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A file produced by a spreadsheet can be used as it by the DBMS can be used for graphic all of the listed here is generally stored on disk in an ASCII text format can be used as it by the DBMS can be used for graphic all of the listed here is generally stored on disk in an ASCII text format ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An attribute is a(n): row of a table. key of a table. two dimensional table. column of a table. row of a table. key of a table. two dimensional table. column of a table. ANSWER DOWNLOAD EXAMIANS APP
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