advantages of nosql

Source: comparison of various nosql databases in http://hi.baidu.com/eastdoor/blog/item/758d0e3eedb5d92471cf6c14.html Cassandra, MongoDB, CouchDB, Redis, Riak, HBaseCouchDBDevelopment language: ErlangMain advantages: data consistency and ease of useLicense: ApacheProtocol: HTTP/RESTApplicable: accumulated, less changed data. Or a large number of versions are required.Example: CRM, CMS systems. multi-site de

MaxIndelicato has published an article titled NoSQLontheMicrosoftPlatform from queryable distributed solutions, such as MongoDB, to simple distributed KeyValue storage solutions, such as Cassandra. In addition, there are Riak, TokyoCabinet, Voldemort, CouchDB and Redis. However, currently only a small number of NoSQL projects are supported. Max Indelicato has published an article titled NoSQL on the Microso

has been greatly weakened.Therefore, the relational database is less suitable in these more and more application scenarios, and the non-relational database to solve this kind of problem arises . NoSQL is a generalized definition of non-relational data storage. It breaks the unification of long-term relational database and acid theory . NoSQL data storage does not require a fixed table structure (for exampl

Will DBAs still exist in the NoSQL world? Author: chszs, reprinted with note. Blog homepage: http://blog.csdn.net/chszs Gartner, a consulting firm, published a survey earlier this month targeting adoption of NoSQL in various positions. The results are surprising. : Only 5.5% of DBAs use NoSQL. The reason is not clear yet, and the investigation itself may be

Krist ófskács, a software architect and consultant who once worked in a number of major companies, blogs on mainstream NoSQL databases (Cassandra, Mongodb, CouchDB, Redis, Riak, Membase, Neo4j, and HBase)) A comprehensive comparison was conducted. Although SQL database is a very useful tool, after 15 years of outstanding performance, the monopoly will be broken. This is only a matter of time: I was forced to use relational databases, but I finally fou

This article was translated from distributed algorithms in NoSQL DatabasesThe scalability of the system is the main reason for the development of the NoSQL movement, including distributed system coordination, failover, resource management and many other features. That makes NoSQL sound like a big basket, and everything can be plugged in. Although the

Although the NoSQL movement does not bring fundamental technological changes to distributed data processing, it still leads to a deluge of research and practice on protocols and algorithms. In this article, I will make some systematic descriptions of the distributed features of the NoSQL database. The scalability of the system is the main reason to drive the development of the

Tags: document definition zll relational database Val search operation God PadYou see, or you don't see me I was right there. No sorrow, no joy. You read, or you don't read me. The feeling is right there Not going to come. ----Cang Gyatso I think it is most appropriate to cite this poem to express the relationship of NoSQL. What we call NoSQL stems from a technical gathering held in San Francisco on Ju

Source: http://database.51cto.com/art/201109/293029.htmAlthough 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 than two of the differences between SQL databases. This means that the Software architect sho

PHP operations on MongoDB [NoSQL] databases. if you need them, refer to MongoDB. I. MongoDB introduction MongoDB (named from "humongous") is a scalable, high-performance, open-source, free-mode, document-oriented database, it combines the advantages of document databases, key-value pairs, and relational databases. Official site: http://www.mongodb.org/,mongodbhighlights: • Document-oriented storage (simpl

[Switch] PHP to operate MongoDB [NoSQL ]. Original: blog.sina.com.cnsblog_4b67d3240101519b.html I. MongoDB introduction MongoDB (name from humongous) is a scalable, high-performance, open-source, free mode, for the original: http://blog.sina.com.cn/s/blog_4b67d3240101519b.html I. MongoDB introduction MongoDB (named from "humongous") is a scalable, high-performance, open-source, free-mode, document-oriented database, it combines the

For PHP operations on MongoDB [NoSQL] databases, refer to section 1. MongoDB introduction. MongoDB (named from "humongous") is a scalable, high-performance, open-source, free-mode, document-oriented database, it combines the advantages of document databases, key-value pairs, and relational databases. Official site: http://www.mongodb.org/,mongodbhighlights: • Document-oriented storage (simple and powerful

NoSQL has been in vogue for a long time, so what exactly is the scene you need to use these "new things", like MongoDB? Here are some summaries: You expect a higher write load By default, MongoDB is more concerned with the high insertion speed than transaction security. If you need to load a lot of low-value business data, then MongoDB will be good for your use cases. But you must avoid using MongoDB, such as a 10 million dollar deal, in situations

Redis set data type to track some unique data, such as access to a blog's unique IP address information. For this scenario, we only need to place the IP of the visitor in Redis each time we access the blog, and the set data type automatically guarantees the uniqueness of the IP address.2, make full use of the set type of service-side aggregation operation convenient and efficient features, can be used to maintain the relationship between data objects. For example, the customer ID of all purchas

Label:absrtact: compared to relational databases, each nosql has its own different scenarios, where you can take stock of common nosql in the fields of document databases, graph databases, key-value data stores, Columnstore databases, and memory data networks.Within a few years, NoSQL databases have focused attention on performance, scalability, flexible patterns

has been greatly weakened.Therefore, the relational database is less suitable in these more and more application scenarios, and the non-relational database to solve this kind of problem arises . NoSQL is a generalized definition of non-relational data storage. It breaks the unification of long-term relational database and acid theory . NoSQL data storage does not require a fixed table structure (for exampl

I. Relational database ( SQL):Mysql,Oraclefeatures : There is a relationship between data and data , between Tables and fields , between tables and tablesFor example : Department table 001 section, Employee table 001User table , user name , passwordClassification Table and commodity tables , one -to-many relationships. Advantages :There is a relationship between ① data, it is very convenient to make and delete data.② relational databases have transac

Tags: start scala understanding operation NULL Conditional Protocol Note log fileIn a previous article, "Introduction to Graphical Database Neo4j", we introduced a very popular method of using graphical database neo4j. In this article, we'll simply introduce another type of NoSQL database--cassandra. The reason for exposure to Cassandra is the same as that of contact neo4j: Our products need to be able to record large amounts of data that cannot be pr

In the past few years, relational databases have been the only choice for data persistence. Data workers only consider filtering these traditional databases, such as SQL Server, Oracle, or MySQL. You can even make some default options. For example, if you use. net, you generally select SQL server. If you use Java, you may prefer Oracle, Ruby is MySQL, and python is PostgreSQL or MySQL. The reason is simple: the robustness of relational databases has been proven in most applications for a long ti

Tags: nosql NoSQL Basic Concepts and MongoDB MongoDB Basic Application MongoDB Index and copy set The concept of database sharding and the realization of MongoDB sharding I. The basic concept of NoSQLNoSQL (not just SQL), is a technical genre, non-relational database; it is one of the drawbacks of