WOL: A Language for Database Transformations and Constraints (1997)
| Venue: | In IEEE Int. Conf. on Data Engineering |
| Citations: | 31 - 4 self |
BibTeX
@INPROCEEDINGS{Davidson97wol:a,
author = {Susan B. Davidson and Anthony S. Kosky},
title = {WOL: A Language for Database Transformations and Constraints},
booktitle = {In IEEE Int. Conf. on Data Engineering},
year = {1997},
pages = {55--65}
}
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Abstract
The need to transform data between heterogeneous databases arises from a number of critical tasks in data management. These tasks are complicated by schema evolution in the underlying databases, and by the presence of non-standard database constraints. We describe a declarative language, WOL, for specifying such transformations, and its implementation in a system called Morphase. WOL is designed to allow transformations between the complex data structures which arise in object-oriented databases as well as in complex relational databases, and to allow for reasoning about the interactions between database transformations and constraints. integrating the US Cities-and-States and European-Citiesand-Countries databases shown in Figures 1 and 2. The graphical notation used here is inspired by [2]: the boxes represent classes which are finite sets of objects; the arrows represent attributes, or functions on classes. name str
