Prior to the development of the database concept, programs usually had to be modified if the file structures that they accessed were modified.
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Q40: Problems caused by two or more users
Q41: The term record occurrence refers to one
Q42: An attribute is an entity.
Q43: There are three basic ways of retrieving
Q44: In the database concept, each application has
Q46: Data redundancy is a positive feature of
Q47: A simple linear file is structured in
Q48: Prior to the development of the database
Q49: Data integration refers to the ability to
Q50: An entity is the set of facts
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