Update semantics of relational views
ACM Transactions on Database Systems (TODS)
On the correct translation of update operations on relational views
ACM Transactions on Database Systems (TODS)
A relational model of data for large shared data banks
Communications of the ACM
Database Updates through Abduction
VLDB '90 Proceedings of the 16th International Conference on Very Large Data Bases
On the computation of relational view complements
ACM Transactions on Database Systems (TODS)
Proceedings of the 3rd International Symposium on Quantum Interaction
QI '09 Proceedings of the 3rd International Symposium on Quantum Interaction
Beyond Ontology in Information Systems
QI '09 Proceedings of the 3rd International Symposium on Quantum Interaction
Structured Information Retrieval and Quantum Theory
QI '09 Proceedings of the 3rd International Symposium on Quantum Interaction
A Quantum-Based Model for Interactive Information Retrieval
ICTIR '09 Proceedings of the 2nd International Conference on Theory of Information Retrieval: Advances in Information Retrieval Theory
Type indeterminacy in privacy decisions: the privacy paradox revisited
QI'12 Proceedings of the 6th international conference on Quantum Interaction
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The ANSI-SPARC architecture was proposed as a hierarchical model for the implementation of Database Management Systems (DBMS). A separation of external user views and shared base relations (conceptual schema) constitutes their logical independence, i.e., external views are immune to changes of the conceptual schema. Moreover, users can customize their views independent of the conceptual schema. However, all updates to a base relation should be immediately reflected in all views that reference the base relation. Vice versa, if a view is updated, then the underlying base relation should reflect the change. Keeping views and base relations in sync came to be known as the view-update problem. This paper argues that view updates require the user to cause a change. Prior to a view update user and view are entangled. Entangled states cannot be reduced to factual states of user and base relation. It will be shown that the view-update problem arises due to a view update (causation) being irreducible to a functional mapping between base relation and view (causality).