This guide explains how to export a graph from Neo4j* and import it into OrientDB in 3 easy steps. If you want to know more about the differences between OrientDB and Neo4j, take a look at OrientDB vs Neo4j.
In order to export the database in GraphML format, you need the additional neo4j-shell-tools plugin:
lib
folderNow launch the Neo4j-Shell tool located in the bin
directory and execute the following command:
export-graphml -o /tmp/out.graphml
Where /tmp/out.graphml
is the location to save the file in GraphML format.
Example:
$ bin/neo4j-shell
Welcome to the Neo4j Shell! Enter 'help' for a list of commands
NOTE: Remote Neo4j graph database service 'shell' at port 1337
neo4j-sh (0)$ export-graphml -o /tmp/out.graphml
Wrote to GraphML-file /tmp/out.graphml 0. 100%: nodes = 302 rels = 834 properties = 4221 time 59 sec total 59 sec
To import the GraphML file into OrientDB complete the following steps:
$ORIENTDB_HOME/bin
g = new OrientGraph("plocal:/tmp/db/test");
specifying the path of your new OrientDB Graph Database, /tmp/db/test
in this caseg.loadGraphML('/tmp/out.graphml');
where /tmp/out.graphml
is the path of the exported fileExample:
$ cd $ORIENTDB_HOME/bin
$ ./gremlin.sh
\,,,/
(o o)
-----oOOo-(_)-oOOo-----
gremlin> g = new OrientGraph("plocal:/tmp/db/test");
==>orientgraph[plocal:/db/test]
gremlin> g.loadGraphML('/tmp/out.graphml');
==>null
gremlin> quit
Congratulations! The database has been imported into OrientDB.
*Neo4j is a registered trademark of Neo Technology Inc.