Hi Marc,
I try to use the mainmem flag because I use a temporally base to do some specific treatments and extract it after. But when I create the database it isn't! [...] The main memory database doesn't exist anymore?
Exactly. For more information, please have a look at the following pages (a thank you to Max for extending our Wiki entry):
http://docs.basex.org/wiki/Databases#In_Memory_Database http://www.mail-archive.com/basex-talk%40mailman.uni-konstanz.de/msg04139.ht...
Hope this helps, Christian