May 2024
Intermediate to advanced
325 pages
12h 2m
English
Content preview from Distributed Database Systems, 1st Edition by Chhanda Ray
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Distributed Database Concepts
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35
Increased storage requirements Data replication in distributed DBMS requires additional disk
storage space. This disadvantage is a minor one, because disk storage space is relatively cheap, and
it is becoming cheaper. However, disk access and storage management in a widely dispersed data-
storage environment are more complex than they would be in a centralized database.
Maintenance of integrity is very diffi cult Database integrity refers to the validity and consistency
of stored data. Database integrity is usually expressed in terms of constraints. A constraint speci-
fi es a condition and a proposition that the ...
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