A new interpretation for null values in the weak instance model
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Publication:909490
DOI10.1016/0022-0000(90)90032-GzbMath0694.68063OpenAlexW1977825979MaRDI QIDQ909490
Maria Cristina de Bernardis, Paolo Atzeni
Publication date: 1990
Published in: Journal of Computer and System Sciences (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1016/0022-0000(90)90032-g
Related Items (4)
The nested universal relation data model ⋮ Fuzzy functional dependencies and independencies in extended fuzzy relational database models ⋮ Inferring null join dependencies in relational databases ⋮ Independent database schemes under functional and inclusion dependencies
Cites Work
- Partition semantics for relations
- Database relations with null values
- Independent database schemas
- Database states and their tableaux
- On the foundations of the universal relation model
- Some Results on the Representative Instance in Relational Databases
- Functional dependencies and constraints on null values in database relations
- Independent and Separable Database Schemes
- On the Equivalence of Database Models
- Testing satisfaction of functional dependencies
- Horn clauses and database dependencies
- A characterization of globally consistent databases and their correct access paths
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