Integrity Constraint Checking in Federated Databases


Grefen, Paul and Widom, Jennifer (1996) Integrity Constraint Checking in Federated Databases. In: First IFCIS International Conference on Cooperative Information Systems, CoopIS 1996, 19-21 June 1996, Brussels, Belgium (pp. pp. 38-47).

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Abstract:A federated database is comprised of multiple interconnected databases that cooperate in an autonomous fashion. Global integrity constraints are very useful in federated databases, but the lack of global queries, global transaction mechanisms, and global concurrency control renders traditional constraint management techniques inapplicable. The paper presents a threefold contribution to integrity constraint checking in federated databases: (1) the problem of constraint checking in a federated database environment is clearly formulated; (2) a family of cooperative protocols for constraint checking is presented; (3) the differences across protocols in the family are analyzed with respect to system requirements, properties guaranteed, and costs involved. Thus, we provide a suite of options with protocols for various environments with specific system capabilities and integrity requirements
Item Type:Conference or Workshop Item
Copyright:©1996 IEEE
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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