These are the Proceedings of the Workshops co-located with the 23rd International Conference on Extending Database Technology and the 23rd International Conference on Database Theory, 30th March-2nd April 2020, Copenhagen, Denmark. Alexandra Poulovassilis EDBT/ICDT 0 1 Workshops Chair 0 1 DARLI-AP 2020 Programme Committee Daniele Apiletti, Politecnico di Torino, Italy Khalid Belhajjame, University Paris Dauphine, France Agnese Chiatti, The Open University, UK Alfredo Cuzzocrea, University of Trieste, Italy Elena Daraio, Politecnico di Torino, Italy Javier A. Espinosa, Delft University of Technology, Netherlands Alessandro Fiori, Candiolo Cancer Institute - FPO IRCCS , Italy SEA Data 2020 Programme Committee Manos Athanassoulis, Boston University, USA Nikolaus Augsten, University of Salzburg , Austria 2020

The EDBT/ICDT 2020 joint conference and all of its Workshops took place fully online due to the global coronavirus pandemic. The workshops chair, organisers, presenters, and online attendees express their gratitude to the Conference Officers, Executive Board and local organisation teams in making possible the online workshops under the challenging circumstances faced world-wide.