Hello, I'm creating forms using XForms and BaseX. For some of them, I need to use a lot of data, so I've set up a search form that loads an XForms instance at every change in the field, from an internal link like this: /xml/persons/search?query=[search field content]. BaseX responds with RESTXQ: declare %rest:path('/xml/persons/search') %rest:produces('application/xml') %rest:query-param('query', '{$query}') function searchPersons($query){ <persons> db:get(myBase)//*:persons[ . contains text {fn:lower-case($query)} using fuzzy] </persons> }; Although I only enable searches with 3 characters or more, each change to the search field creates a new call to db:get(), which, if I understand correctly, is not recommended. Could using a variable in the RESTXQ file solve this problem ? Something like : declare variable $project:allPersons := db:get(myBase)//*:persons and then only using this new var ? If not, how can I avoid to call to much db:get()? Thank you very much for your answers. Regards, Laurent