Uma abordagem para armazenamento de dados semi-estruturados em bancos de dados relacionais

Karine MagalhãesAlberto H. F. LaenderAltigran Silva

This paper presents an approach to storing semistructured data in relational databases. We focus on semistructured data as extracted from Web pages by a tool called DEByE (Data Extraction By Example), and organized according to its data model, the DEByE Object Model (DEByE-OM). The approach presented here consists in representing the structure of objects extracted by DEByE by a relational schema and populating the corresponding database accordinly. We also show how to retrieve such data by automatically transforming high-level query speci?cations (query patterns) into SQL queries that are executed over the relational database. Results of experiments carried out to evaluate our approach are also described.

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