Changes

BaseX stores all XML nodes in a flat table. The node table of a database can be displayed via the [[Commands#INFO STORAGE{{Command|INFO STORAGE]] }} command:

The [[{{Function|Database Module#db:node-pre|db:node-pre]] }} and [[{{Function|Database Module#db:node-id|db:node-id]] }} functions can be called to retrieve the ''pre'' and ''id'' values of a node, and [[{{Function|Database Module#db:open-pre|db:openget-pre]] }} and [[{{Function|Database Module#db:open-id|db:openget-id]] }} can be used to go back and retrieve the original node. By default, ''id'' lookups are expensive. If the [[Options#UPDINDEX{{Option|UPDINDEX]] option }} is turned on, an additional index will be maintained to speed up the process.