Research Issues in Structured and Semistructured Database Programming

Invited Paper.- Semistructured Computation.- Querying and Query Optimisation.- On the Power of Incremental Evaluation in SQL-like Languages.- Optimization of Nested SQL Queries by Tableau Equivalence.- User-Defined Aggregates in Database Languages.- Languages for Document Models.- How to Make SQL Stand for String Query Language.- Structured Document Transformations Based on XSL.- Extensions of Attribute Grammars for Structured Document Queries.- Persistence, Components and Workflow.- An Overview of Souk Nets: A Component-based Paradigm for Data Source Integration.- Defining and Handling Transient Fields in PJama.- A Framework for Optimizing Distributed Workflow Executions.- Typing and Querying Semistructured Data.- Querying Semistructured Data Based on Schema Matching.- Union Types for Semistructured Data.- Query Optimization for Semistructured Data Using Path Constraints in a Deterministic Data Model.- Active and Spatial Databases.- Expressing topological connectivity of spatial databases.- A Representation Independent Language for Planar Spatial Databases with Euclidean Distance.- An Abstract Interpretation Framework for Termination Analysis of Active Rules.- Unifying Semistructured and Traditional Data Models.- On the Difference between Navigating Semi-structured Data and Querying It.- Ozone: Integrating Structured and Semistructured Data.