40. The activity of a file a. is a low percentages of number of records added or deleted from a file b. if high, reduces processing efficiency for sequential and nonsequential files c. is a measure of the percentage of existing records updated during a run d. refers to how closely the files fits into the allocated

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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40. The activity of a file
a. is a low percentages of number of records added or deleted from a file
b. if high, reduces processing efficiency for sequential and nonsequential files
c. is a measure of the percentage of existing records updated during a run
d. refers to how closely the files fits into the allocated
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