Ceri, S. and Widom, J. (1993) Managing Semantic Heterogeneity with Production Rules and Persistent Queues. In: 19th International Conference on Very Large Data Bases (VLDB 1993), August 24-27, 1993, Dublin, Ireland.
We show that production rules and persistent queues together provide a convenient mechanism for maintaining consistency in semantically heterogeneous multidatabase environments. We describe a specification language and methods for automatically deriving production rules that maintain (1) existence dependencies, in which the presence of data in one database implies the presence of related data in another, and (2) value dependencies, in which the value of data in one database is based on the value of related data in another. The production rules derived from dependency specifications use persistent queues to monitor and maintain the dependencies automatically, asynchronously, incrementally, and correctly.
|Item Type:||Conference or Workshop Item (Paper)|
|Uncontrolled Keywords:||active database, heterogeneous database, Starburst|
|Related URLs:||Project Homepage||http://infolab.stanford.edu/|
|Deposited By:||Import Account|
|Deposited On:||25 Feb 2000 16:00|
|Last Modified:||05 Feb 2009 15:57|
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