View source for Options

==General==

===MAINMEM===

{| width='100%'
|- valign="top"
| width='120' | '''Signature'''
|{{Code|MAINMEM [boolean]}}
|- valign="top"
| '''Default'''
|{{Code|false}}
|- valign="top"
| '''Summary'''
|If this option is turned on, new databases arecreated in main memory:
* Most queries are evaluated faster in main-memory mode, but all data is lost if the BaseX instance in which the database was created is shut down.
* It is not possible to store binary resources in a main-memory database.
* A main-memory database will have no disk representation. However, it is possible to export the database via the {{Command|EXPORT}} command, and create a new database from the exported file in a second step.
* This option will not be available for {{Function|Database|db:create}} because the database would not be accessible anymore after database creation, i.e., outside the query scope.
|}

===ADDCACHE===

{| width='100%'
|- valign="top"
| width='120' | '''Signature'''
|{{Code|ADDCACHE [boolean]}}
|- valign="top"
| '''Default'''
|{{Code|false}}
|- valign="top"
| '''Summary'''
|If this option is activated, data structures of documents will first be cached to disk before being added to the final database. This option is helpful when larger documents need to be added, and if the existing heuristics cannot estimate the input size (e.g. when adding directories or sending input streams).
|}