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Neo4j is a graph database management system ... The data elements Neo4j stores are nodes, edges connecting them, ... (free) and Enterprise, and three are cloud-only ...
The Bolt Protocol (Bolt) is a connection oriented network protocol used for client-server communication in database applications. It operates over a TCP connection or WebSocket. Bolt is statement-oriented, allowing a client to send messages containing a statement consisting of a single string and a set of typed parameters.
Cypher was originally intended to be used with the graph database Neo4j, but was opened up through the openCypher project in October 2015. [ 3 ] The language was designed with the power and capability of SQL (standard query language for the relational database model ) in mind, but Cypher was based on the components and needs of a database built ...
A graph database (GDB) is a database that uses graph structures for semantic queries with nodes, edges, and properties to represent and store data. [1] A key concept of the system is the graph (or edge or relationship). The graph relates the data items in the store to a collection of nodes and edges, the edges representing the relationships ...
The ICIJ used a commercial version of Linkurious and Neo4j in the investigation of the Panama papers, uncovering 4.8 million leaked files consisting of emails, 3 million database entries, 2.2 million PDFs, 1.2 million images, 320,000 text files, and 2242 files, evidence of money laundering, tax evasion or political corruption. [19] [20]
The resulting graph is a property graph, which is the underlying graph model of graph databases such as Neo4j, JanusGraph and OrientDB where data is stored in the nodes and edges as key-value pairs. In effect, code property graphs can be stored in graph databases and queried using graph query languages.
Neo4j: Graph database: Yes Yes Yes Yes No Java Neo Technology GNU GPL v3.0: OrientDB: Multi-Model (Graph-Document-Object-Key/Value) Yes Yes [18] Yes [19] Yes [20] Yes Java Orient Technologies Apache 2.0: Redis: Key-value Yes. But last few queries can be lost. [21] Yes Yes [22] Yes [23] No Ansi-C VMWare, Memcache BSD: ScyllaDB: Key-value Yes Yes ...
OrientDB database listening for HTTP client connections [175] 2483: Yes: Oracle database listening for insecure client connections, replaces port 1521 [when?] 2484: Yes: Oracle database listening for SSL client connections 2500: Unofficial: NetFS communication [176] 2501: Unofficial: NetFS probe 2535: Yes: Multicast Address Dynamic Client ...