Open data is a concept separate from free and open source software. However, they have similar concerns such as copyleft: GPL for source code and ODbL for data

Open data is a concept separate from free and open source software. However, they have similar concerns such as copyleft: GPL for source code and ODbL for data both require changes to be published. Outside of copyleft, Creative Commons 4.0 licenses (CC-BY 4.0, CC-BY-SA 4.0, CC0) from 2013 are good licenses for open data: https://theodi.org/blog/cc-40-and-open-data https://theodi.org/blog/cc-40-and-open-data