Schema Transformation without Database Reorganization

Authors: 
Tresch, Markus; Scholl, Marc H.
Author: 
Tresch, M
Scholl, M
Year: 
1993
Venue: 
Sigmod Record, 1993
DOI: 
doi.acm.org/10.1145/156883.156886
Citations: 
79
Citations range: 
50 - 99

We argue for avoiding database reorganizations due to schema modification in object-oriented systems, since these are expensive operations and they conflict with reusing existing software components. We show that data independence, which is a neglected concept in object databases, helps to avoid reorganizations in case of capacity preserving and reducing schema transformations. We informally present a couple of examples to illustrate the idea of a schema transformation methodology that avoids database reorganization.