orientdb | versatile DBMS supporting Graph Document Reactive | Database library

 by   orientechnologies Java Version: 3.2.19 License: Apache-2.0

kandi X-RAY | orientdb Summary

kandi X-RAY | orientdb Summary

orientdb is a Java library typically used in Institutions, Learning, Administration, Public Services, Database, MongoDB applications. orientdb has build file available, it has a Permissive License and it has high support. However orientdb has 1264 bugs and it has 11 vulnerabilities. You can download it from GitHub, Maven.

OrientDB is an Open Source Multi-Model NoSQL DBMS with the support of Native Graphs, Documents, Full-Text search, Reactivity, Geo-Spatial and Object Oriented concepts. It's written in Java and it's amazingly fast. No expensive run-time JOINs, connections are managed as persistent pointers between records. You can traverse thousands of records in no time. Supports schema-less, schema-full and schema-mixed modes. Has a strong security profiling system based on user, roles and predicate security and supports SQL amongst the query languages. Thanks to the SQL layer it's straightforward to use for people skilled in the Relational world. Get started with OrientDB | OrientDB Community Group.

            kandi-support Support

              orientdb has a highly active ecosystem.
              It has 4608 star(s) with 872 fork(s). There are 276 watchers for this library.
              It had no major release in the last 12 months.
              There are 260 open issues and 8688 have been closed. On average issues are closed in 208 days. There are 6 open pull requests and 0 closed requests.
              It has a positive sentiment in the developer community.
              The latest version of orientdb is 3.2.19

            kandi-Quality Quality

              orientdb has 1264 bugs (70 blocker, 90 critical, 614 major, 490 minor) and 29748 code smells.

            kandi-Security Security

              orientdb has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              orientdb code analysis shows 11 unresolved vulnerabilities (6 blocker, 1 critical, 2 major, 2 minor).
              There are 711 security hotspots that need review.

            kandi-License License

              orientdb is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              orientdb releases are available to install and integrate.
              Deployable package is available in Maven.
              Build file is available. You can build the component from source.
              Installation instructions are available. Examples and code snippets are not available.

            Top functions reviewed by kandi - BETA

            kandi has reviewed orientdb and discovered the below as its top functions. This is intended to give you an instant insight into orientdb implemented functionality, and help decide if they suit your requirements.
            • moves from the current state
            • Validate a field
            • Parses an AlterClass statement .
            • Convert the value to a stream .
            • Fetch rid map .
            • Compare two field values .
            • Returns a WALRecord object for the given record id .
            • Returns the time after the given time .
            • Imports a delta .
            • Applies the given pattern context to the query
            Get all kandi verified functions for this library.

            orientdb Key Features

            No Key Features are available at this moment for orientdb.

            orientdb Examples and Code Snippets

            No Code Snippets are available at this moment for orientdb.

            Community Discussions


            Using the 'astar' function of OrientDB: an SQL call in Java
            Asked 2021-Dec-07 at 23:33

            I'm using OrientDB to represent large city maps and calculate the shortest traversal times between a pair of nodes when the need arises. I have the following method:



            Answered 2021-Dec-07 at 23:33

            Turns out the error had nothing to do with the bracket itself. Passing the "direction='OUT'" and "customHeuristicFormula='EUCLIDEAN'" parameters in as part of the string was the problem. The below block did the trick.

            Source https://stackoverflow.com/questions/70255040


            Connecting to an embedded OrientDB server in Java
            Asked 2021-Dec-07 at 20:18

            I'm looking to run a Java process on several machines, each of which will need to start a local OrientBD server, load a graph, perform our processes, then close. As such, I need to be able to embed the OServer start process from within Java.

            There is plenty of advice about how to do so, including SA questions, however most seem to be out of date (so please don't mark this as a duplicate prematurely). The most directly relevant seems to be this, however it doesn't work - at least for me. With the below code, I get the subsequent error:



            Answered 2021-Dec-07 at 20:18

            The issue was three-fold:

            1. I was using the 'ALL' .jar provided by the website. Instead I needed to use the libraries provided in the full source.
            2. I did not account for the fact that when the code failed, it did not delete the database it half-created, thus could not execute the code I tried to remedy. I had to implement a temporary fail-safe to drop the database prior to initialisation to avoid this.
            3. I was using the wrong(?) strategy in general.

            My working method is as below.

            Source https://stackoverflow.com/questions/70257659


            Error Querying OrientDB: Cannot query demodb database
            Asked 2021-Nov-11 at 14:42

            Hi i'm new to OrientDB and i'm having querying errors with the latest version 3.2.2. GA Community Edition.

            When using the default database "DemoDB" and going to the graph tab, using the query SELECT * FROM 'Profiles' I get a long list of errors that says "Error parsing query: SELECT * FROM 'Profiles' ^ Encountered "FROM "" at line 1, column 10. Was expecting one of ... and the error repeats itself with the name of the database at the bottom name ="demodb" Error Code "1"

            I've checked the schema and I do see 'profiles' is listed there. I even done this with lower-case and still come across the same error.

            How can I successfully query using CRUD with these errors? What is this error message saying?



            Answered 2021-Nov-10 at 13:00

            I think you are using quotes to state the name of the class, are not needed you may use backtick '`' if you need to escape some special characters

            Source https://stackoverflow.com/questions/69866332


            Get date using subprocess python?
            Asked 2021-Apr-20 at 18:53

            I used subprocess to get information on a directory in my VM.



            Answered 2021-Apr-20 at 15:42

            You can have some code like this:

            Source https://stackoverflow.com/questions/67181314


            Orientdb python list databases?
            Asked 2021-Apr-12 at 19:40

            i am using Python to get a list of databases that were more than 30 days old. So far i have been able to get the list of the databases from here. And this is my code :-



            Answered 2021-Apr-12 at 19:40

            If you are able to somehow pull a create_date value for the DB you could use something like this using the timedelta object:

            Source https://stackoverflow.com/questions/67062919


            Run orientdb server from c#
            Asked 2020-Nov-16 at 12:27

            I try run OrientDB server from c# code. When I run via Powershell my database works, but when I try run from code I get error like don't have connect to db. I thought problem is how long process starts but I used Thread.Sleep(20000) after processOrient.Start and it didn't help too. Other servers starts very well from code (but .exe files) My code:



            Answered 2020-Nov-16 at 12:27

            In order to run bat-file you need to have UseShellExecute = true.

            Source https://stackoverflow.com/questions/64857967


            How to determine the direction of an edge between vertexes in a Graph Database such as OrientDB
            Asked 2020-May-15 at 07:35

            How do we know if an edge is an out() going or in() coming in a graph database like OrientDB? I know that edges serve as links between vertexes (which is the same as a relationship between tables in RDMS), but how do we determine the direction. For example, I have some vertexes for Lecturer and courses, here, I want to have one (1) Lecturer to many Courses i.e. one-to-many relationship. So what is the direction of the edge between a lecturer and Courses, is it in() coming to the lecturer or out() going from a lecturer I mean how do I write the query using "select in() from lecturer" or select out() from lecturer? Thanks.



            Answered 2020-May-13 at 21:56

            Undirected vs Directed edge


            A -(Edge) - B

            A can traverse to B, and B can traverse to A

            Pros: Simple when working with undirected (symmetric) or bidirectional relationships. Example: "A friend_of B" ⇔ "B friend_of A"

            Cons: Does not carry directional info.

            Directed Edge

            A -(Edge) -> B

            A can traverse to B, but B cannot traverse to A

            Pros: Saves memory and correctly describes a direction-restricted relationship Example: "A parent_of B" ⇏ "B parent_of A"

            Cons: Can not traverse back from target to source.

            Regarding Your Question - If it was me, I would choose undirected for your use case because most likely I would want to go both directions.

            Source https://stackoverflow.com/questions/61785037


            Orientdb : database closed exception while fetching records
            Asked 2020-Apr-08 at 20:18

            Trying to fetch records from orientdb. I am getting below error:



            Answered 2020-Apr-08 at 20:18

            I think you are consuming the OResultSet outside the Try block, this means that the session is closed and the rs can't fetch more data from the database anymore.

            Source https://stackoverflow.com/questions/61098167


            Impossible to use gremlin in OrientDB Studio
            Asked 2020-Apr-06 at 19:44

            I've been trying to use gremlin with OrientDB (V 3.0.30) using the "studio" provided with OrientDB, but each time I try to run a gremlin query such as g.V I get the error: com.orientechnologies.orient.core.exception.OSecurityException: Language 'gremlin' is not allowed to be executed DB name="demodb".
            I am using a brand new installation (on windows) and I do have a version that comes with tp3.

            I tried creating new databases, each time setting them as graph databases and I tried adding gremlin to the orientdb-server-config.xlm as an allowed language for the server side script interpreter but nothing changed.
            What settings should I change to enable gremlin code to be executed from this "studio"?

            Thank you in advance.



            Answered 2020-Apr-06 at 19:44

            Here's the release note of 3.0.28

            IMPORTANT: In this release, for security reasons, remote scripting was disabled by default (apart from SQL, that is still enabled by default of course). This impacts execution like following

            db.execute("gremlin", "");

            To re-enable remote scripting, you have to edit your orientdb-server-config.xml, adding the scripting languages you need to OServerSideScriptInterpreter:

            Source https://stackoverflow.com/questions/61065396


            Alternative for deprecated command() function in orientDB
            Asked 2020-Feb-27 at 06:49

            I'm using OrientDb java document api to query the database.My sample code is



            Answered 2020-Feb-27 at 06:49

            The documentation you are pointing at is for a version of the commandmethod that is not deprecated.

            The signature of the deprecated command is:

            Source https://stackoverflow.com/questions/60427083

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install orientdb

            Yes. OrientDB is totally written in Java and can run on any platform without configuration and installation. The full Server distribution is a few MBs without the demo database. Do you develop with a language different than Java? No problem, look at the Programming Language Binding.


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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