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Comparison of 8 kinds of NoSQL database system: Kristóf Kovács Editor: Agile translation: Tang Yuhua share: More: Kristóf Kovács is a software architect and consultant who recently published an article comparing various types of NoSQL databases. The article is compiled by Agile translation-Tang Yuhua. If you want to reprint, please refer to the text after the declaration. Although SQL database is very useful ...

1. Languages used in COUCHDB: Erlang features: DB consistency, easy to use license: Apache protocol: http/rest bidirectional data replication, continuous or temporary processing, processing with conflict checking, therefore, The use of Master-master replication (see note 2) mvcc– write without blocking read operation Pre-save version crash-only (reliable) design requires data compression view: Embedded mapping/Reduce formatted view: List display support for server ...

In the past few years, the innovative development of the open source world has elevated the productivity of Java™ developers to one level. Free tools, frameworks and solutions make up for once-scarce vacancies. The Apache CouchDB, which some people think is a WEB 2.0 database, is very promising. It's not difficult to master CouchDB, it's as simple as using a Web browser. This issue of Java open ...

With the explosion of information, micro-blogging website Twitter was born. It is no exaggeration to describe Twitter's growth with the word "born". Twitter has grown from 0 to 66,000 since May 2006, when the number of Twitter users rose to 1.5 in December 2007. Another year, December 2008, Twitter's number of users reached 5 million. [1] The success of Twitter is a prerequisite for the ability to provide services to tens of millions of users at the same time and to deliver services faster. [2,3,4 ...

Normally do we need a new programming language? You might think we do not need it. But if you understand the recent trends, your ideas may change. Why did Google use both GO and DART programming languages? Why did IBM, Cray and Red Hat create X10, Chapel and Ceylon respectively? In the future, these 10 programming languages ​​(DART, Ceylon, GO, F # OPA, Fantom, Zimb ...

As a software developer or DBA, one of the essential tasks is to deal with databases, such as MS SQL Server, MySQL, Oracle, PostgreSQL, MongoDB, and so on. As we all know, MySQL is currently the most widely used and the best free open source database, in addition, there are some you do not know or useless but excellent open source database, such as PostgreSQL, MongoDB, HBase, Cassandra, Couchba ...

Do we need a new programming language? You may not think you need it, but if you go to the latest trends, you may change your mind. Why does Google use go and dart two programming languages? Why do IBM, Cray, and Red hat create the three languages of X10, Chapel, and Ceylon, respectively? In the future, are these 10 programming languages (DART, Ceylon, go, F #, OPA, Fantom, Zimbu, X10, Haxe, Chapel) able to shake it. The new programming language is ...

Guide: The software architect who recently worked for a number of large companies has taken into account the Kristóf Kovács's blog about the mainstream NoSQL database (Cassandra, Mongodb, CouchDB, Redis, Riak, and HBase) in a comprehensive comparison. Although the SQL database dominates 15, it is time to end it. NoSQL in the heyday of today, a variety of nosql products are blossoming, but each ...

It was easy to choose a database two or three years ago. Well-funded companies will choose Oracle databases, and companies that use Microsoft products are usually SQL Server, while budget-less companies will choose MySQL. Now, however, the situation is much different. In the last two or three years, many companies have launched their own Open-source projects to store information. In many cases, these projects discard traditional relational database guidelines. Many people refer to these items as NoSQL, the abbreviation for "not only SQL." Although some NoSQL number ...

Do we need a new programming language? You may not think you need it, but if you go to the latest trends, you may change your mind. Why does Google use go and dart two programming languages? Why do IBM, Cray, and Red hat create the three languages of X10, Chapel, and Ceylon, respectively? In the future, are these 10 programming languages (DART, Ceylon, go, F #, OPA, Fantom, Zimbu, X10, Haxe, Chapel) able to shake it. New programming language ...