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Specification and Implementation of Programs for Updating Incomplete Information Databases (Preliminary Report)

Summary: Frames updates of incomplete-information (logical) databases as a programming problem and introduces BLU (a five-primitive core) plus HLU (a user-level language), with formal denotational semantics. Develops possible-worlds and clausal semantics, proves clausal correct as an implementation of possible-worlds, establishes BLU as a semantically complete primitive layer for update-language implementation, and identifies masking as a necessary primitive, implying inherent complexity in updating logical databases. (summarized by gpt-5-mini on Feb 09 2026)

Paper ID
787
Venue
PODS
Year
1987
Pagerank
5.6029996e-05
Overall Rank
7,538 | 48.29%
DOI
10.1145/28659.28675

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@inproceedings{hegner_pods87,
        address = {New York, NY, USA},
        series = {{PODS} '87},
        title = {{Specification and Implementation of Programs for Updating Incomplete Information Databases (Preliminary Report)}},
        url = {https://dl.acm.org/doi/10.1145/28659.28675},
        doi = {10.1145/28659.28675},
        booktitle = {Proceedings of the {ACM} {SIGMOD} Symposium on {Principles} of {Database} {Systems}},
        publisher = {Association for Computing Machinery},
        author = {Hegner, Stephen J},
        year = {1987}
}

Incoming Citations (Sorted by Pagerank)

Showing 1 of 1 citing papers.

Rank Citing Paper Year Venue Pagerank
13,149 A Framework for Comparison of Update Semantics (Extended Abstract) 1988 PODS 5.093636e-05
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Outgoing Citations (Sorted by Pagerank)

Showing 2 of 2 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank Cited Paper Year Venue Pagerank
2,402 Update Semantics for Incomplete Databases 1985 VLDB 8.6276184e-05
6,722 A Model-Theoretic Approach to Updating Logical Databases (Extended Abstract) 1986 PODS 5.7940109e-05
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