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)

Paper ID: hf1119f4ae84ede0e
Venue: SIGMOD
Year: 1990
Pagerank: 4.9793485e-05
Overall Rank: 13,411 | 9.84%
DOI: 10.1145/93597.93626

Incoming Non-self Citations Over Time

No non-self incoming citations found for this paper in this database.

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}
}

Incoming Citations (Sorted by Pagerank)

Showing 0 of 0 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank

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
41	Testing Implications Of Data Dependencies	1979	SIGMOD	0.00045899672
102	Efficient Optimization of a Class of Relational Expressions	1978	SIGMOD	0.00033914384
278	Can We Use The Universal Instance Assumption Without Using Nulls?	1981	SIGMOD	0.00022313978
769	Independent Database Schemas (Extended Abstract)	1982	PODS	0.00014104125
1,455	On Computing Restricted Projections of Representative Instances	1985	PODS	0.00010599099
3,619	Efficient Query Answering in the Representative Instance Approach	1985	PODS	7.1558272e-05
7,279	Optimal Computation of Total Projections with Unions of Simple Chase Join Expressions	1984	SIGMOD	5.5671882e-05
13,422	Updating Databases in the Weak Instance Model	1989	PODS	4.9793485e-05
13,463	A New Basis for the Weak Instance Model	1987	PODS	4.9793485e-05

Semantically Similar Papers

#	Overall Rank	Paper	Year	Venue
1	4,701	Updating a Relational Database through a Universal Schema Interface	1985	PODS
2	1,346	Independence of Logic Database Queries and Updates	1990	PODS
3	5,480	Constant Time Maintenance or The Triumph of the fd.	1986	PODS
4	2,163	Improving Database Schemes by Adding Attributes	1983	PODS
5	13,461	On Designing Database Schemes Bounded or Constant-time-maintainable with respect to Functional Dependencies	1987	PODS
6	13,463	A New Basis for the Weak Instance Model	1987	PODS
7	13,474	Independent Database Schemes Under Functional and Inclusion Dependencies	1987	VLDB
8	769	Independent Database Schemas (Extended Abstract)	1982	PODS
9	9,433	Querying Weak Instances	1984	PODS
10	13,422	Updating Databases in the Weak Instance Model	1989	PODS