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After the execution of update operations, the [[Commands#OPTIMIZE|OPTIMIZE]]command or the See more in [[Database ModuleIndexes#db:optimizeUpdates|db:optimize]] function can becalled to rebuild the index structures.This way, multiple update operations will be performed faster,as the database meta data is only updated and regeneratedonce in the updating process. As an alternative, incremental indexing can be turned on for the valueindexes (texts and attribute values)Indexes: the [[Options#UPDINDEX|UPDINDEXUpdates]]option must be activated before creating a new database.
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==Effects on your documents== ==Documents==
In BaseX, all updates are performed on database nodes. Update operations thus never affect the original input file. You can, however, use the [[Commands#EXPORT|EXPORT]] command or the fn:put() function to create an updated XML file.
==Indexes==
By default, [[Index|index structures]] are discarded after an update
operation, and their maintenance is left to the user.
==Error Messages==
