neo4j database

* Cassandra: Supports data replication across data centers, providing column indexes* HBase: An open-source, distributed, columnstore-oriented model* Amazon SimpleDB: A non-relational data store* Apache Accumulo: Ordered, distributed key-value data storage, based on Google's bigtable design* Hypertable: An open-source, extensible database that mimics bigtable and supports sharding* Azure Tables: Provides NoSQL performance for applications that r

Database * Cassandra: Supports data replication across data centers, providing column indexes* Hbase: An open-source, distributed, columnstore-oriented model* Amazon SimpleDB: A non-relational data store* Apache Accumulo: Ordered, distributed key-value data storage, based on Google's bigtable design* Hypertable: An open-source, extensible database that mimics bigtable and supports sharding* Azure Tabl

Label:Guide: Kristóf Kovács is a software architect and consultant who recently published an article comparing various types of NoSQL databases. Although SQL database is a very useful tool, the monopoly is about to be broken after 15 years of a single show. This is only a matter of time: forced to use relational databases, but eventually found to be unable to adapt to the needs of the numerous. But the difference between NoSQL databases is far more th

Label:Guide: Kristóf Kovács is a software architect and consultant who recently published an article comparing various types of NoSQL databases. Although SQL database is a very useful tool, the monopoly is about to be broken after 15 years of a single show. This is only a matter of time: forced to use relational databases, but eventually found to be unable to adapt to the needs of the numerous. But the difference between NoSQL databases is far more th

Label:Transferred from: http://blog.jobbole.com/1344/ Guide: Kristóf Kovács is a software architect and consultant who recently published an article comparing various types of NoSQL databases. Although SQL database is a very useful tool, the monopoly is about to be broken after 15 years of a single show. This is only a matter of time: forced to use relational databases, but eventually found to be unable to adapt to the needs of the numerous. But the d

Tags: stored procedure eva puzzle SYS attach should be obtained by modifyingDuring the backup and restore of the database, I encountered a problem "the media set has 2 media families, but only 1 are available." Must provide all members ", the following is a detailed description of the problems encountered and problem-solving methods!One, backup and restore encountered problem description and workaround:The first two days of user testing We do the eval

(Dynamo), Voldemort, Scalaris, Memcached (in-memory key/value store), Redis, and so on. Schema-less. Typically there are Cassandra (column-based), CouchDB (document-based), MongoDB (document-based), neo4j (graph-based), HBase ( column-based), Elasticsearch (document-based) and so on. comparative analysis of OLTP and OLAP At present, the distributed database mainly divides into two kinds of scene--OLTP (on-

Origins and application scenarios of various database factions Now, we can consider from the perspective of various use cases that the system is suitable for these use cases. What is your opinion? First, we need to look at various data models. The classification methods of these models come from Emil Eifrem and NoSQL databases. Document Database Source: inspired by Lotus Notes. Data Model: A set of documen

After restoring the database backed up by SQL2000 to sql2005, the "database relationship diagram" prompt: the database does not have a valid owner, so you cannot install the database relationship diagram support object "SOLUTION After restoring the database backed up by SQ

Computer Management-database system principles-database management and database system principles Definition: DBMS monitoring of databases is called database management or database protection. **************************************** ** The smallest logical unit of work tha

, such as JSON. A document database can be considered an upgraded version of a key-value database, allowing for the nesting of key values. and the document database is more efficient than the key-value database query. such as: CouchDB, MongoDb. Graph database: The graphi

 http://blog.csdn.net/robinjwong/article/details/18502195 1. Relational database A relational database is a database that uses a relational model to organize data. The relational model was first proposed by IBM researcher Dr. E.f.codd in 1970, and in the following decades the concept of the relational model was fully developed and gradually became the mainst

Tags: blog image number log simple BSP database operation Alt HTTPDatabase access Technology ADO The data in the database is extracted into memory and presented to the user to seeIt is also possible to write in-memory data to the database is not the only database access technology, but it is the lowest level of

"Customer Name": Guizhou Tongren driving Person Training Center"Software name": UF T3 Universal Edition"Database Version": MS SQL Server 2000 "database size": 1GB X 6 (3 accounts for a total of 6 years)."Problem description": Due to server poisoning or Kaka, the customer sent the server computer to the installed shop to redo the operating system. Not detailed to inform the use of the computer, resulting in

Php implements the migration of the specified database number of the redis database, redis database. Php implements the migration of the specified database number of the redis database. This document describes how to migrate the specified

-relational database technology stage. Because of the shortcomings of data model, performance and scalability in relational database, there are:Ordbms: Object-oriented database technology.NoSQL: Structured database technology. with the development of big data, non-relational databases are now an extremely hot new fie

Spaces Allegro-C NessDB HyperDex Sophia PickleDB Serialization of Redis Python objects. Mnesia LightCloud Based on Tokyo Tyrant Hibari Hibari is a data storage service for availability, consistency, and distributed key-value data. OpenLDAP Genomu BinaryRage Elliptics Graph database Neo4J Infinite Graph DEX TITAN InfoGrid HyperGraphDB GraphBase Trinity AllegroGraph BrightstarDB Bigdata Meronymy WhiteDB Ope

Description of the problem: after the SQL Server database backup is restored, the word "restricted access" appears after the database name Problem two description: When restoring to a SQL Server database, prompt: System.Data.SqlClient.SqlError: Cannot obtain exclusive access to a database because the

MSSQL Server 2005 Restore Database Bak files, Web sites using Virtual host site will often encounter, in general, the host has an online management program, but sometimes not, you need to restore the local backup SQL database. In this case, MSSQL Server 2008 will also appear, sometimes the "backup set of database backup and the existing XX

/** This feature is mainly demo, while connecting two concurrent databases*/ /* contains C header file * *#include #include #include /* Contains SQLCA header file * *EXEC SQL INCLUDE Sqlca;EXEC SQL INCLUDE Sqlda; int main (){EXEC SQL BEGIN DECLARE section;int money;Char answerbuff[200];int flag;EXEC SQL end DECLARE section; /** Define input Host variables: Receive user name, password, and network service name**/Char username[10],password[10],server[10], conn_var[20];strcpy (username, "data_cente