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A DBMS Prototype to Support Extended NF2 Relations: An Integrated View on Flat Tables and Hierarchies

Summary: Prototype DBMS for extended NF2 relations, unifying flat tables, lists, and hierarchies. Presents a logical model, a query language, and storage alternatives to implement generalized relations, evaluating integrated architecture to overcome drawbacks of external extensions. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
hd5619d492d5703ed
Venue
SIGMOD
Year
1986
Pagerank
0.00020222123
Overall Rank
354 | 97.63%
DOI
10.1145/16894.16889

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@inproceedings{dadam_sigmod86,
        title = {{A DBMS Prototype to Support Extended NF2 Relations: An Integrated View on Flat Tables and Hierarchies}},
        author = {Dadam, P and Kuespert, K and Andersen, F and Blanken, H and Erbe, R and Guenauer, J and Lum, V and Pistor, P and Walch, G},
        series = {{SIGMOD} '86},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/16894.16889},
        url = {https://dl.acm.org/doi/10.1145/16894.16889},
        year = {1986}
}

Incoming Citations (Sorted by Pagerank)

Showing 32 of 32 citing papers.

Rank Citing Paper Year Venue Pagerank
147 On Rules, Procedures, Caching And Views In Data Base Systems 1990 SIGMOD 0.00029019485
635 LDL: A Logic-Based Data-Language 1986 VLDB 0.00015368492
698 A Data Model and Query Language for EXODUS 1988 SIGMOD 0.00014687325
874 Object-Oriented Database Systems 1988 PODS 0.00013331383
1,143 The POSTGRES Data Model 1987 VLDB 0.00011847554
2,154 A Recursive Algebra and Query Optimization for Nested Relations 1989 SIGMOD 8.9474855e-05
2,531 Supporting Flat Relations by a Nested Relational Kernel 1987 VLDB 8.3351949e-05
2,556 Architecture and Implementation of the Darmstadt Database Kernel System 1987 SIGMOD 8.3026469e-05
2,698 Updating Relational Databases through Object-Based Views 1991 SIGMOD 8.1197711e-05
2,751 Possibilities and Limitations of Using Flat Operators in Nested Algebra Expressions 1988 PODS 8.0562002e-05
2,887 Towards an Effective Calculus for Object Query Languages 1995 SIGMOD 7.9076462e-05
2,992 Design and Implementation of an Extensible Database Management System Supporting User Defined Data Types and Functions 1988 VLDB 7.7729638e-05
3,530 Extended User-Defined Indexing with Application to Textual Databases 1988 VLDB 7.2276073e-05
3,813 Closed World Databases Opened Through Null Values 1988 VLDB 7.0084288e-05
4,432 PRIMA - a DBMS Prototype Supporting Engineering Applications 1987 VLDB 6.601596e-05
5,019 A Grammar-Based Approach Towards Unifying Hierarchical Data Models (extended abstract) 1989 SIGMOD 6.3112208e-05
5,204 A General Model for Version Management in Databases 1986 VLDB 6.2301018e-05
5,378 An Implementation for Nested Relational Databases 1988 VLDB 6.1561988e-05
6,002 Cooperative Object Buffer Management in the Advanced Information Management Prototype 1987 VLDB 5.9177524e-05
6,054 Nested Historical Relations 1989 SIGMOD 5.9024935e-05
6,420 An Object-Oriented Database System for Engineering Applications 1987 SIGMOD 5.7903037e-05
6,643 The Design of non-1NF Relational Databases into Nested Normal Form 1987 SIGMOD 5.7232205e-05
6,695 The Partial Normalized Storage Model of Nested Relations 1988 VLDB 5.7066498e-05
6,964 Sorting, Grouping and Duplicate Elimination in the Advanced Information Management Prototype 1989 VLDB 5.6328172e-05
7,156 Extending the Relational Algebra to Capture Complex Objects 1989 VLDB 5.5973998e-05
7,453 Support for Temporal Data by Complex Objects 1990 VLDB 5.5231578e-05
7,692 An Open Abstract-Object Storage System 1996 SIGMOD 5.4770817e-05
8,606 Elimination of Views and Redundant Variables in an SQL-like Database Language for Extended NF^2 Structures 1990 VLDB 5.3041112e-05
13,376 The Term Retrieval Abstract Machine 1992 SIGMOD 4.9793485e-05
13,413 Indexing in a Hypertext Database 1990 VLDB 4.9793485e-05
13,417 On Restructuring Nested Relations in Partitioned Normal Form 1990 VLDB 4.9793485e-05
13,468 Why Rose Is Fast: Five Optimizations In The Design Of An Experimental Database System For Cad/Cam Applications 1987 SIGMOD 4.9793485e-05
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Outgoing Citations (Sorted by Pagerank)

Showing 6 of 6 cited papers.

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

Rank Cited Paper Year Venue Pagerank
1 Access Path Selection in a Relational Database Management System 1979 SIGMOD 0.0023947656
140 Remarks on the Algebra of Non First Normal Form Relations 1982 PODS 0.00029346895
183 On Extending the Functions of a Relational Database System 1982 SIGMOD 0.00026178731
681 Designing DBMS Support for the Temporal Dimension 1984 SIGMOD 0.00014821572
1,010 Integration of Time Versions into a Relational Database System 1984 VLDB 0.00012539712
9,007 Selective Deferred Index Maintenance & Concurrency Control in Integrated Information Systems 1985 VLDB 5.2388062e-05
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2 8,301 Managing Complex Objects in an Extensible Relational DBMS 1989 VLDB
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5 13,492 An Extended Relational Database System and It's Application to Management of Logic Diagrams 1986 VLDB
6 1,326 An Architecture For High-Level Language Database Extensions 1976 SIGMOD
7 140 Remarks on the Algebra of Non First Normal Form Relations 1982 PODS
8 2,094 Designing a Generalized NF2 Model with an SQL-Type Language Interface 1986 VLDB
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