Logical Design of Relational Database Schemes
Summary: Introduce extended conflict-free (ECF) cover and prove: for FDs+MVDs an acyclic, dependency-preserving 4NF decomposition exists iff the dependency set has an ECF cover. Provide polynomial-time test and construction; specializes to FDs giving iff condition for acyclic, dependency-preserving BCNF. (summarized by gpt-5-mini on Feb 09 2026)
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| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 1,051 | A Normal Form for Nested Relations | 1985 | PODS | 0.00014421811 |
| 3,096 | Database Decomposition Into Fourth Normal Form | 1983 | VLDB | 7.5755731e-05 |
| 9,118 | Unifying Functional and Multivalued Dependencies for Relational Database Design | 1986 | PODS | 4.388537e-05 |
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