Nosql Database For Social Network

Over the past few years, the world of NoSQL databases has been filled with interesting new projects, ambitious statements and a lot of promises. It is rumored that the latest NoSQL database software package achieves significant performance improvements by adjusting all the structures and the three times-fold checksum that the database creator has been hoping to increase over the years. What about reliability? The reliability is overrated, according to Wall Street programmers who didn't use the NoSQL database to run large-scale enterprise applications but only trivial deals. What about the tabulation structure? Too rigid and limited. e.g.

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 ...

The document database of NoSQL database technical characteristics Today's cloud computing practitioners are not unfamiliar with the term nosql, though many technicians have long been working on relational databases, but now they are looking forward to nosql technology. The transition from relational to NoSQL databases is definitely a big change to be considered for businesses. This involves not only the changes in software, but also the conceptual changes in data storage. Most non-relational databases have fast and scalable features. By discarding relational storage models and schemas, relationships ...

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 ...

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 ...

30 years of database development and formation of Oracle, IBM, Microsoft and other representative of the strong monopoly pattern, making the traditional domestic database not only untimely, coupled with the technology to follow the strategy, in the field of business processing tenacious fight, although the product continues to progress, market applications have also been to achieve a single point of breakthrough, But mostly in non-core applications. Despite the government's continued strong support, but in the monopoly barriers and open source software around the attack, in addition to the policy market, it is difficult to achieve a large-scale breakthrough, has not yet formed a benign cycle of enterprise development and government support for a mutually beneficial situation. ...

30 years of database development and formation of Oracle, IBM, Microsoft and other representative of the strong monopoly pattern, making the traditional domestic database not only untimely, coupled with the technology to follow the strategy, in the field of business processing tenacious fight, although the product continues to progress, market applications have also been to achieve a single point of breakthrough, But mostly in non-core applications. Despite the government's continued strong support, but in the monopoly barriers and open source software around the attack, in addition to the policy market, it is difficult to achieve a large-scale breakthrough, has not yet formed a benign cycle of enterprise development and government support for a mutually beneficial situation. ...

There are two main ways to store data: Database and filesystem, and the object-oriented storage are developed behind, but the overall thing is to store both structured and unstructured data. DB is initially serviced for structured data storage and sharing. FileSystem storage and sharing is large files, unstructured data, such as pictures, documents, audio and video. With the increase in data volume, stand-alone storage can not meet the needs of structured and unstructured data, then in the era of cloud computing, there is a distributed ...

Forbes: hadoop--Big Data tools you have to understand now Apache Hadoop has become the driving force behind the development of the big data industry. Techniques such as hive and pig are often mentioned, but they all have functions and why they need strange names (such as Oozie,zookeeper, Flume). Hadoop has brought in cheap processing of large data (large data volumes are usually 10-100GB or more, with a variety of data types, including structured, unstructured, etc.) capabilities. But this is the same as before ...

According to foreign media reports, when consumers step into the U.S. largest auto parts retailer AutoZone located in Texas Veken's retail stores, will find the vast majority of AutoZone stores have no special sales shock absorbers. In Minneapolis city, consumers will find discounted Reese's traction equipment at the AutoZone retail store. In Florida State's Malber, consumers will find a special sale of nets. Directional trading is part of the AutoZone global supply chain strategy from the retail level, which reduces consumers ' access to autozone retail ...