Relaxing the Universal Relation Scheme Assumption
Summary: Relax the USA via an Association-Object Data Model using representative instances with value-inapplicable nulls. Introduce object dependencies (ODs) and object-defining constraints (ODCs) with complete axiomatizations and a chase-like decision procedure, showing expressiveness beyond join dependencies. (summarized by gpt-5-mini on Feb 09 2026)
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Authors
- 1. Jacob Stein
- 2. David Maier
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Outgoing Citations (Sorted by Pagerank)
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Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 38 | Testing Implications Of Data Dependencies | 1979 | SIGMOD | 0.0007528369 |
| 131 | Can We Use The Universal Instance Assumption Without Using Nulls? | 1981 | SIGMOD | 0.00043719033 |
| 355 | Synthesizing Independent Database Schemas | 1979 | SIGMOD | 0.00026204925 |
| 3,481 | Specifying Connections for a Universal Relation Scheme Database | 1982 | SIGMOD | 7.0520694e-05 |
| 4,409 | Toward Logical Data Independence: A Relational Query Language without Relations | 1982 | SIGMOD | 6.2012852e-05 |
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