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Checking Integrity Constraints - How it Differs in Centralized,
Distributed and Parallel Databases  Sign In   Formats Non-Member
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Ibrahim, H. ; Fac. of Comput. Sci. & Inf. Technol., Universiti
Putra Malaysia, Serdang  An important aim of a database system
is to guarantee database consistency, which means that the data
contained in a database is both accurate and valid. Integrity
constraints represent knowledge about data with which a database
must be consistent. The process of checking constraints to
ensure that update operations or transactions which alter the
database will preserve its consistency has proved to be
extremely difficult to implement, particularly in distributed
and parallel databases. In distributed databases the aim of the
constraint checki