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dc.contributor.authorKessler, Johannes
dc.contributor.authorTschuggnall, Michael
dc.contributor.authorSpecht, Günther
dc.contributor.editorGrust, Torsten
dc.contributor.editorNaumann, Felix
dc.contributor.editorBöhm, Alexander
dc.contributor.editorLehner, Wolfgang
dc.contributor.editorHärder, Theo
dc.contributor.editorRahm, Erhard
dc.contributor.editorHeuer, Andreas
dc.contributor.editorKlettke, Meike
dc.contributor.editorMeyer, Holger
dc.date.accessioned2019-04-11T07:21:28Z
dc.date.available2019-04-11T07:21:28Z
dc.date.issued2019
dc.identifier.isbn978-3-88579-683-1
dc.identifier.issn1617-5468
dc.identifier.urihttp://dl.gi.de/handle/20.500.12116/21718
dc.description.abstractThe relational model and especially the relational algebra is the fundament of each relational database system and thus content of almost every database lecture. Even though there exist a few tools allowing to experiment with relational algebra, a common way to learn it is still by formulating queries on paper, without the option of checking them for syntax or even executing them. To fill this gap and to support students in their learning process, we propose RelaX, a webbased tool which is capable of executing arbitrary relational algebra statements on arbitrary datasets. By drawing interactive operator trees corresponding to the queries, it is also possible to compute the final result in a step-by-step manner. Finally, RelaX is also equipped to execute SQL queries and to automatically translate them to relational algebra.en
dc.language.isoen
dc.publisherGesellschaft für Informatik, Bonn
dc.relation.ispartofBTW 2019
dc.relation.ispartofseriesLecture Notes in Informatics (LNI) – Proceedings, Volume P-289
dc.subjectrelational algebra
dc.subjectdatabase systems
dc.subjectlearning tool
dc.titleRelaX: A Webbased Execution and Learning Tool for Relational Algebraen
mci.reference.pages503-506
mci.conference.sessiontitleDemonstrationen
mci.conference.locationRostock
mci.conference.date4.-8. März 2019
dc.identifier.doi10.18420/btw2019-32


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