Introduction to Database System
If the record management system allows you to edit values before they are recorded on disk, you can

correct spelling changes before they are recorded
All of the listed here
change the name of a field
change the width of a field

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Introduction to Database System
A race condition occurs when

two users of the DBMS are interacting with different files at the same time
None of the listed here
Both of the listed here
Two concurrent activities interact to cause a processing error

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