Introduction to Database System
The PROJECT command will create new table that has

none of the listed here
more rows than the original table
both of the listed here
more fields than the original table

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Introduction to Database System
The activity of a file

is a measure of the percentage of existing records updated during a run
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 low percentages of number of records added or deleted from a file

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