The SNDS database is a unique medico-administrative health database. It is one of the largest in the world (>65 million people, >200Tb). Though it contains no clinical data, it is very rich, and can contribute to major applications with strong potential impacts on health and/or on economy of health. Moreover, thanks to the Health Data Hub, this database will be soon enriched by large amount of clinical databases. Working on these very large databases is complex but extremely exciting.



