Also known as Orient
OrientDB is an open source NoSQL database management system written in Java. It is a Multi-model database, supporting graph, document and object models, the relationships are managed as in graph databases with direct connections between records. It supports schema-less, schema-full and schema-mixed modes. It has a strong security profiling system based on users and roles and supports querying with Gremlin along with SQL extended for graph traversal. OrientDB uses several indexing mechanisms based on B-tree and Extendible hashing, the last one is known as "hash index". Each record has Surrogate
Get started with OrientDB OrientDB Community Group Dev Updates Community Chat . No. OrientDB adheres to the NoSQL movement even though it supports ACID Transactions and SQL as query language. In this way it's easy to start using it without having to learn too much new stuff. Yes. OrientDB is totally written in Java and can run on any platform without configuration and installation. Do you develop with a language different than Java? No problem, look at the Programming Language Binding. Main References Documentation Version < 3.2.x For any questions visit the OrientDB Community Group All the contribution are considered licensed under Apache-2 license if not stated otherwise. References: Apache 2 license (Apache2): Common Development and Distribution License (CDDL-1.0): Eclipse Distribution License (EDL-1.0): (
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OrientDB is an open source NoSQL database management system written in Java. It is a Multi-model database, supporting graph, document and object models, the relationships are managed as in graph databases with direct connections between records. It supports schema-less, schema-full and schema-mixed modes. It has a strong security profiling system based on users and roles and supports querying with Gremlin along with SQL extended for graph traversal. OrientDB uses several indexing mechanisms based on B-tree and Extendible hashing, the last one is known as "hash index". Each record has Surrogate key which indicates the position of the record on disk. Links between records (edges) are stored either as the record's position stored directly inside of the referrer or as B-tree of record positions (so-called record IDs or RIDs), that serves as a container of RIDs, which allows fast traversal (with O(1) complexity) of one-to-many relationships and fast addition/removal of new links. OrientDB is the 6th most popular graph database according to the DB-Engines graph database ranking, as of January 2024.
The development of OrientDB relies on an open-source community. The project uses GitHub to manage the sources, contributors and versioning.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).