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

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

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Introduction to Database System
A multiple-form file management system

allow you to entry data in all the forms
lets you define different forms for different operations
lets you create a look-up form with an associated read-only password to prevent access by unauthorized users
None of these
both (a) and (b)

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