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→db:open-id
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| '''Summary'''
|Opens the database {{Code|$db}} and returns the node with the specified {{Code|$id}} value.<br />Each database node has a persistent ''id'', which remains valid after update operations. If no updates are performed, the Access to nodes via their ''preid'' value can be requested, which provides access to database nodes in constant timesped up by turning on the [[Option#UPDINDEX|UPDINDEX]] option.
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| '''Errors'''
