Can I add data to previous RDF import

Users Dgraph
1

First Time I import People in rdf like:

_:ub0038814 <name> "Juping" .
_:ub0038814 <sex> "male" .

Next time i found i forgot the phone number…so i add another RDF file

_:ub0038814 <phone> "13566754567" .

But the phone won`t related to Juping…

What is the solution? thanks…

1 Like
2

The reason behind this issue is _:ub0038814 is treated as a blank node and the node cannot be identified with _:ub0038814 once the mutation has been performed.

There are 2 ways to update:

  1. Performing another mutation to update the predicate of the node. To do this you will have to know the uid of the node to update.
    Reference: https://dgraph.io/docs/mutations/blank-nodes/
  2. Using upsert. You can get the uid of the node by querying and then updating the node using mutate.
    Reference: https://dgraph.io/docs/mutations/extrenal-ids-upsert-block/