Efficient Updates to Independent Schemes in the Weak Instance Model
Summary: Weak instance model views the DB as a single global relation, enabling updates over arbitrary attribute sets via a lattice of legal states. For independent schemes, updates are computed efficiently by restricting to the relevant portion, avoiding the full chase on the whole database. (summarized by gpt-5-nano on Feb 09 2026)
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Authors
- 1. Paolo Atzeni (Institute for the Analysis of Systems and Informatics; University of Naples)
- 2. Riccardo Torlone (Institute for the Analysis of Systems and Informatics)
BibTeX Citation
@inproceedings{atzeni_sigmod90,
title = {{Efficient Updates to Independent Schemes in the Weak Instance Model}},
author = {Atzeni, Paolo and Torlone, Riccardo},
series = {{SIGMOD} '90},
booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
publisher = {Association for Computing Machinery},
doi = {10.1145/93597.93626},
url = {https://dl.acm.org/doi/10.1145/93597.93626},
year = {1990}
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Outgoing Citations (Sorted by Pagerank)
Showing 9 of 9 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 40 | Testing Implications Of Data Dependencies | 1979 | SIGMOD | 0.00046918506 |
| 97 | Efficient Optimization of a Class of Relational Expressions | 1978 | SIGMOD | 0.00034574497 |
| 266 | Can We Use The Universal Instance Assumption Without Using Nulls? | 1981 | SIGMOD | 0.00022823892 |
| 742 | Independent Database Schemas (Extended Abstract) | 1982 | PODS | 0.00014426824 |
| 1,417 | On Computing Restricted Projections of Representative Instances | 1985 | PODS | 0.00010839353 |
| 3,551 | Efficient Query Answering in the Representative Instance Approach | 1985 | PODS | 7.3196924e-05 |
| 7,132 | Optimal Computation of Total Projections with Unions of Simple Chase Join Expressions | 1984 | SIGMOD | 5.694968e-05 |
| 13,132 | Updating Databases in the Weak Instance Model | 1989 | PODS | 5.093636e-05 |
| 13,173 | A New Basis for the Weak Instance Model | 1987 | PODS | 5.093636e-05 |
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| 1 | 4,606 | Updating a Relational Database through a Universal Schema Interface | 1985 | PODS |
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| 3 | 5,351 | Constant Time Maintenance or The Triumph of the fd. | 1986 | PODS |
| 4 | 2,124 | Improving Database Schemes by Adding Attributes | 1983 | PODS |
| 5 | 13,171 | On Designing Database Schemes Bounded or Constant-time-maintainable with respect to Functional Dependencies | 1987 | PODS |
| 6 | 13,173 | A New Basis for the Weak Instance Model | 1987 | PODS |
| 7 | 13,184 | Independent Database Schemes Under Functional and Inclusion Dependencies | 1987 | VLDB |
| 8 | 742 | Independent Database Schemas (Extended Abstract) | 1982 | PODS |
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| 10 | 13,132 | Updating Databases in the Weak Instance Model | 1989 | PODS |