SYSTEM/U: a database system based on the universal relation assumption
ACM Transactions on Database Systems (TODS)
On the foundations of the universal relation model
ACM Transactions on Database Systems (TODS)
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ACM Transactions on Database Systems (TODS)
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Communications of the ACM
Principles of Database Systems
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A universal relation database system implemented via the network model
PODS '82 Proceedings of the 1st ACM SIGACT-SIGMOD symposium on Principles of database systems
Universal Relation Views: A Pragmatic Approach
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Theory of Relational Databases
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Updating databases in the weak instance model
PODS '89 Proceedings of the eighth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Updating relational databases through weak instance interfaces
ACM Transactions on Database Systems (TODS)
Regular Article: The nested universal relation data model
Proceedings of the 30th IEEE symposium on Foundations of computer science
Algebraic Rewritings for Optimizing Regular Path Queries
ICDT '01 Proceedings of the 8th International Conference on Database Theory
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CIKM '10 Proceedings of the 19th ACM international conference on Information and knowledge management
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The universal-relation model is introduced, and its fundamental ideas are outlined. This model keeps access-path independence by removing the need for logical navigation among relations. One benefit is a simple yet powerful query-language interface. Two universal-relation database-management systems are discussed that provide good examples of the model: System/U, developed at Stanford University, and FIDL, developed at International Computers Ltd. in Britain.