Dear Wendell, It's just a simple practical hint : when I run several queries in the GUI, memory grows, And at the end a simple query can fail because memory is exhausted... I read your xml example, Do you need to copy data from a collection to another ? I have exactly the same need. So I ask again the BaseX users for advice, concerning this functionality. Maybe the CREATE and ADD commands/functions could accept path from another collection as input, like doc() and collection() ? For example : <create-db name='target_collection'>source_collection/path/to/(mydoc)?</create-db> or Db:add('target_collection', 'source_collection/path/to/(mydoc)?') Could give the same result that something like : <create-db name='target_collection'>{collection('source_collection/path/to/(mydoc)?')}</create-db> or Db:add('target_collection', collection('source_collection/path/to/(mydoc)?'), db:list('source_collection/path/to/(mydoc)?')) This would avoid the precious cost of an useless intermediate data extraction. Best regards, Fabrice Questel-Orbit -----Message d'origine----- De : basex-talk-bounces@mailman.uni-konstanz.de [mailto:basex-talk-bounces@mailman.uni-konstanz.de] De la part de Wendell Piez Envoyé : mardi 16 avril 2013 17:46 À : BaseX Objet : [basex-talk] Running and configuring update operations outside the GUI Hi, I too have a question about database updates, in particular Fabrice's remark that "The GUI may not be the best place to run updates, did you try the basex command line tools ?" I have an update that is working okay from the GUI, but I wouldn't mind it if it were faster. :-) Is simply invoking the same XQuery using RUN from the command line all I have to do to get the benefits of using the CL? In addition: my update query is configured with a bit of XML, something like declare variable $build-db := <build db="new"> <source db="old1"/> <source db="old2"/> <source db="old3"/> </build>; (Of course it's more complicated than this but you get the essence.) But I can't pass this XML into a function to perform the updates, since I can't put update operations into a function at all. (So the XML is piled into a global variable, which the update operations reference.) Do you have any suggestions for how I can encapsulate the updating logic and also make it configurable externally like this? And run it from the command line or a script for speed and efficiency? Thanks, Wendell -- Wendell Piez | http://www.wendellpiez.com XML | XSLT | electronic publishing Eat Your Vegetables _____oo_________o_o___ooooo____ooooooo_^ _______________________________________________ BaseX-Talk mailing list BaseX-Talk@mailman.uni-konstanz.de https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk