Frank Neven

Datalog Queries Distributing over Components

2015 · DROPS (Schloss Dagstuhl – Leibniz Center for Informatics)

We investigate the class D of queries that distribute over components. These are the queries that can be evaluated by taking the union of the query results over the connected components of the database instance. …

BonXai

2017 · ACM Transactions on Database Systems

While the migration from DTD to XML Schema was driven by a need for increased expressivity and flexibility, the latter was also significantly more complex to use and understand. Whereas DTDs are characterized by their …