We present a formal semantics for the Object Constraint Language (OCL) which is part of the
Unified Modeling Language (UML)–an emerging standard language and notation for object …

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Object-oriented database systems (ooDBMSs) are supposed to offer at least the functionality
available in commercial relational DBMSs of today. One important consequence of this is …

This paper tells the story of OQL, the standard query language of the Object Database
Management Group (ODMG)[30]. The story starts in 1988, at INRIA in the Altaïr Group.‡ The …

A novel taxonomic model for structuring and accessing large heterogeneous information
bases is presented. The model is designed to simplify both classification and access by …

The goal of this work is to integrate in a general framework the different query optimization
techniques that have been proposed in the object-oriented context. As a first step, we focus …

structuring schemas that consist in grammars annotated with database programs. To query
documents, we introduce an extension of OQL, the ODMG standard query language for …

We show how structured data stored in les can benet from standard database technology
and in particular be queried and updated using database languages. We introduce the …

This paper reports our experiences building the query optimizer for TI's Open OODB system.
To the best of our knowledge, it is the first working object query optimizer to be based on a …

Many declarative query languages for object-oriented databases allow nested subqueries.
This paper contains the first (to our knowledge) proposal to optimize them. A two-phase …