Jonathan, in my humble opinion, here are the main reasons you may need several collections : - FullText indexing in several languages (because language is collection wide) : a per language partition of your data - Size (usually in number of nodes) limitation - Huge updates : a read only backlog collection + a read/write front collection of fresh data + queries tailored to read both collections. Best regards, And maybe good night ? Fabrice Etanchaud De : basex-talk-bounces@mailman.uni-konstanz.de [mailto:basex-talk-bounces@mailman.uni-konstanz.de] De la part de Jonathan Robie Envoyé : mardi 6 février 2018 23:31 À : BaseX Objet : [basex-talk] One document per database or multiple? If I have a set of related documents (a text, a lexicon, frequency counts, a discourse analysis, etc), how should I decide when to put more than one document in a single database at different paths, as opposed to putting one document in each database? When I create a database from the GUI, it seems to prefer one document per database. Should I take that as a hint? Jonathan