Abstract | ||
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A high-level "access path" approach to database restructuring is described and contrasted with the "elementary operations" approach taken by most restructuring systems. With the elementary operations approach, restructuring is viewed as a sequence of basic or "primitive" operations which manipulate a source database in order to convert it into a target database. In the access path approach, restructuring is seen as the process of accessing a body of information represented by the source data, and constructing the target database representation of the same information. While the elementary operations approach is useful for restructuring hierarchical databases, it does not generalize well for networks. The access path approach is better-suited to the complex structures possible in network databases. The access path approach permits the specification of complex restructuring transformations in terms of application-oriented concepts such as access strategies and selection criteria. A non-procedural Network Restructuring Language (NRL) based on this approach is presented, and an example of its use in restructuring is given. The architecture of an NRL-driven Restructurer for network databases is described. |
Year | DOI | Venue |
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1977 | 10.1145/1499402.1499493 | AFIPS National Computer Conference |
Keywords | Field | DocType |
source database,access strategy,database restructuring,complex restructuring transformation,restructuring network databases,target database,access path approach,restructuring system,network databases,operational software,access path,elementary operations approach,complex structure | Architecture,Computer science,Source data,Theoretical computer science,Software,Hierarchical database model,Database,Restructuring | Conference |
Citations | PageRank | References |
10 | 6.44 | 13 |
Authors | ||
3 |
Name | Order | Citations | PageRank |
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Donald E. Swartwout | 1 | 16 | 36.00 |
Mark E. Deppe | 2 | 10 | 6.44 |
James P. Fry | 3 | 702 | 481.74 |