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CoDEL - A Relationally Complete Language for Database Evolution

Software developers adapt to the fast-moving nature of software systems with agile development techniques. However, database developers lack the tools and concepts to keep pace. Data, already existing in a running product, needs to be evolved accordingly, usually by manually written SQL scripts. A promising approach in database research is to use a declarative database evolution language, which couples both schema and data evolution into intuitive operations. Existing database evolution languages focus on usability but did not aim for completeness. However, this is an inevitable prerequisite for reasonable database evolution to avoid complex and error-prone workarounds. We argue that relational completeness is the feasible expressiveness for a database evolution language. Building upon an existing language, we introduce CoDEL. We define its semantic using relational algebra, propose a syntax, and show its relational completeness.

Identiferoai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:29504
Date02 June 2016
CreatorsHerrmann, Kai, Voigt, Hannes, Behrend, Andreas, Lehner, Wolfgang
ContributorsTechnische Universität Dresden
PublisherLecture Notes in Computer Science
Source SetsHochschulschriftenserver (HSSS) der SLUB Dresden
LanguageEnglish
Detected LanguageEnglish
Typedoc-type:conferenceObject, info:eu-repo/semantics/conferenceObject, doc-type:Text
SourceAdvances in Databases and Information Systems - 19th East European Conference, ADBIS 2015 Poitiers, France, September 8–11, 2015 Proceedings
Rightsinfo:eu-repo/semantics/openAccess

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