OrientDB

I have a Question about the shortestPath() Function of OrientDB. If I Query select shortestPath('#9:1', '#15:1', 'BOTH') against a OrientDB I just get the Vertex of the Path. But I also want the Edges between them. How can I SELECT both, the Vertex and the Edges? You can use a javascript function. I used these records I used this code var g=orient.getGraph(); var b=g.command("sql","select expand(shortestPath(" + start + "," + end + ", 'BOTH'))"); var list=[]; for(i=0;i<b.length-1;i++){ var rid1=b[i].getId(); var rid2=b[i+1].getId(); var query="select from e where out = " + rid1 + " and in = "

How do I make a Edge unique in Orientdb. The solution that I came up with: delete the edge create it again but it's not nice. Edge is without any properties. Example: create edge is_friend from #12:0 to #12:3 and if I call it again, there should be an error like when you make a unique index. Thank you Create a constraint on Edge out and in fields. For more information: http://www.orientechnologies.com/docs/last/orientdb.wiki/Graph-Schema.html#constraints In your case try this: CREATE INDEX UniqueEdges ON is_friend (out, in) unique 来源： https://stackoverflow.com/questions/27768489/how-do-you

How to check if a class exists or not in orient db if it is not exiting in the database i need to create it and insert a record if exists i need to insert the record . I need to do the same using JAVA You can retrieve schema information via SQL with the following statement: select expand(classes) from metadata:schema In particular, to retrieve a single class: select from ( select expand(classes) from metadata:schema ) where name = 'YourClassName' From Java: ODatabaseDocumentTx db = ... if(db.getMetadata().getSchema().existsClass("ClassName")){ ... } If you have an OrientGraph, you can get the

I have two CSV files: First containing ~ 500M records in the following format id,name 10000023432,Tom User 13943423235,Blah Person Second containing ~ 1.5B friend relationships in the following format fromId,toId 10000023432,13943423235 I used OrientDB ETL tool to create vertices from the first CSV file. Now, I just need to create edges to establish friendship connection between them. I have tried multiple configuration of the ETL json file so far, the latest being this one: { "config": {"parallel": true}, "source": { "file": { "path": "path_to_file" } }, "extractor": { "csv": {} },

NOTE: I am using a graph database (OrientDB to be specific). This gives me the freedom to write a server-side function in javascript or groovy rather than limit myself to SQL for this issue.* NOTE 2: Since this is a graph database, the arrows below are simply describing the flow of data. I do not literally need the arrows to be returned in the query. The arrows represent relationships.* I have data that is represented in a time-flow manner; i.e. EventC occurs after EventB which occurs after EventA, etc. This data is coming from multiple sources, so it is not completely linear. It needs to be

I have a spring project and I would like very much to use Spring Data OrientDB, is it production ready? or should I just use Graph API or blueprints? 来源： https://stackoverflow.com/questions/28744851/is-spring-data-orientdb-production-ready

I'm trying to make OrientDB Studio display a string as a label for each node, like in this screenshot from Susheel Kumar But when I run Susheel's code (posted below for posterity), the nodes all appear labelled by their @rid fields instead, like this screenshot: Question: Is there an automated way to display all these labels? I can tell an individual node to display its "name" field as a label by clicking (1) the node, (2) the "eye" symbol, (3) the settings symbol, and selecting "name" from the dropdown menu, but this will be impossible to do when I have a large number of nodes. This seems

How can I select or update multiple records in oriento? Like in waterline we can offersModel.update({id:items_ids,status:INACTIVE},{status:ACTIVE}) But in waterline transaction is not available. So I want to use : var db = offersModel.getDB(); var trans = db.begin(); trans.update('offers') .set({status:INACTIVE}) .where({id:items_ids,status:ENM.SELLING_STATUS.ACTIVE})//.exec() .then(function(offers){ if (offers.length != items_ids.length) {trans.rollback(); /* send error here*/} else trans.commit(); }) Thanks. Try this db.update(id).set({status:INACTIVE}).scalar() Have you tried following? db

I'm trying to create schema for graph database in OrientDB with Java but I have two problems I can't solve. I'm using this example http://orientdb.com/docs/last/Graph-Schema.html When I use this code OServerAdmin serverAdmin = new OServerAdmin("remote:localhost").connect("root", "1234"); serverAdmin.createDatabase("mydb", "graph", "plocal"); serverAdmin.close(); I get the following error: java.lang.NoSuchMethodError: com.orientechnologies.common.concur.resource.OResourcePool.getAllResources()Ljava/util/Collection; at com.orientechnologies.orient.client.r It creates the database but nothing