Schema Evolution publication categorizer

... A database view is a portion of the data structured in a way suitable to a specific on views must be translated into updates on the underlying database. This translation process in the relational model. The procedure is as follows: first, a “complete” ...

Publication - erhard - 04/17/2013 - 09:38 - 0 comments - 0 attachments

... 970.14 KB In relational databases a view definition is a query against the database, and ... materialization over a database may change as relations in the database undergo modificationsIn this paper a mechanism is proposed in which the view is materialized at all times The problem which this mechanism ...

Publication - cat - 04/17/2013 - 08:05 - 0 comments - 1 attachment

... 100 - 499 In this paper we describe a new approach to data integration which subsumes the ...

Publication - cat - 04/17/2013 - 07:16 - 0 comments - 0 attachments

... databases, and version and configuration management. In this paper we focus on detecting meaningful changes in hierarchically structured data, such as nested-object data. This problem is ...

Publication - huliganka - 04/17/2013 - 00:38 - 0 comments - 1 attachment

... the most important of which is that schemas are placed in a partial order that has bounded joins. This means that the merging ... that the merge of schemas is independent of the order in which they are considered --- a property not possessed by existing ...

Publication - huliganka - 04/16/2013 - 20:38 - 0 comments - 1 attachment

... effect as applying successively the two schema mappings. In this paper, we give a rigorous semantics to the composition of schema ... We first study the important case of schema mappings in which the specification is given by a finite set of source-to-target ...

Publication - cat - 04/16/2013 - 19:16 - 0 comments - 1 attachment

... such applications by providing a database infrastructure in which a set of high-level algebraic operators, such as Match, Merge, and ... and develop novel algorithms for implementing them. In particular, we present an innovative algorithm based on fixpoint ...

Publication - cat - 04/16/2013 - 18:38 - 0 comments - 1 attachment

... workflow processes or the workflow processes are supported in a rigid manner, i.e., changes are not allowed or handled outside of the workflow management system. In this paper, we propose inheritance-preserving transformation rules for ...

Publication - cat - 04/16/2013 - 09:49 - 0 comments - 0 attachments

... 100 - 499 The basic assumption in model engineering (MDE) is to consider models as first class entities. One of the most important kinds of models in MDE approaches are transformation models. Transformation models define ...

Publication - huliganka - 04/16/2013 - 07:38 - 0 comments - 0 attachments

... or within enterprises—has received much attention in the database and AI communities. The focus has been on building data ... a uniform query interface to the sources. A key bottleneck in building such systems has been the laborious manual construction of semantic ...

Publication - huliganka - 04/16/2013 - 05:27 - 0 comments - 0 attachments

... for integrating database schemas have been proposed in the literature, using various common data models (CDMs). As part of these ... have been defined that map between schemas which are in some sense equivalent. This paper describes a general framework for ...

Publication - huliganka - 04/16/2013 - 00:49 - 0 comments - 0 attachments