Project And Group In Mongodb

In the past few years, relational databases have been the only choice for data persistence, and data workers are considering only filtering in these traditional databases, such as SQL Server, Oracle, or MySQL. Even make some default choices, such as using. NET will typically choose SQL Server, and Java may be biased toward Oracle,ruby, Mysql,python is PostgreSQL or MySQL, and so on. The reason is simple: In the past a long time, the relational database is robust ...

As global corporate and personal data explode, data itself is replacing software and hardware as the next big "oil field" driving the information technology industry and the global economy. Compared with the fault-type information technology revolution such as PC and Web, the biggest difference of large data is that it is a revolution driven by "open source software". From giants such as IBM and Oracle to big data start-ups, the combination of open source software and big data has produced astonishing industrial subversion, and even VMware's past reliance on proprietary software has embraced big Open-source data ...

Like a high bonus car Grand Prix, first prepare the car, familiar with the track, and then adjust the good mentality, timely sprint, to get a good position. The big data also has the gestation period, the preparation period, the result originates from the demand and the desire. 　　Each period has pain points and difficulties, the result is the best. Big data has big energy. It is significant for economic growth-"in the US, in retailing and manufacturing alone, big data analysis has the potential to raise GDP by 325 billion dollars." "This is an exciting estimate from analysts. In the global economic growth slowdown and even fatigue is all the more urgent need for new ...

From 2008 only 60 people attended the technical salon to the present thousands of people technical feast, as the industry has a very practical value of the professional Exchange platform, has successfully held the seven China large Data technology conference faithfully portrayed a large data field in the technical hot spot, precipitated the industry's actual combat experience, witnessed the development and evolution of the whole large data ecological circle technology. December 12-14th, hosted by the China Computer Society (CCF), CCF large data expert committee, the Institute of Computing Technology of the Chinese Academy of Sciences and CSDN co-organized the 2014 China Large Data Technology conference (Big&n ...

December 2014 12-14th, hosted by the China Computer Society (CCF), CCF large data Expert committee, the Chinese Academy of Sciences and CSDN co-organizer of the 2014 China Large Data Technology conference (DA data Marvell Conference 2014,BDTC 2014 will be opened at Crowne Plaza Hotel, New Yunnan, Beijing. The three-day conference aims to promote the development of large data technology in the industry, and to set up "large data Infrastructure" and "large data ..."

Hadoop MapReduce is a programming model for data processing that is simple but powerful enough to be designed for parallel processing of big data.

Successive China Cloud computing Conference has become the landmark event of IT industry development. In 2009, the first Congress discussed cloud computing and its scope; in 2010, the second Congress defined cloud computing hotspot technologies and applications; In 2011, the third Congress discussed the relationship with traditional operators and shared cloud computing practices; 2012, the fourth session of the General Assembly defines "the first year of cloud computing practice," In-depth analysis of technology and industry experience, OpenStack, Cloudstack, Hadoop and other platform research harmonizing; 2013, the fifth session of the General Assembly ...

December 2014 12-14th, hosted by the China Computer Society (CCF), CCF large data Expert committee, the Chinese Academy of Sciences and CSDN co-organizer of the 2014 China Large Data Technology conference (DA data Marvell Conference 2014,BDTC 2014 will be opened at Crowne Plaza Hotel, New Yunnan, Beijing. The three-day conference aims to promote the development of large data technology in the industry, and to set up "large data Infrastructure" and "large data ..."

Taxis, buses, passenger buses, heavy goods vehicles ..., operating vehicles occupy an important position in urban traffic, and people's lives and even social development has an important relationship. 　　It has become an indispensable part of intelligent traffic construction to build an information platform, monitor and manage the operating vehicles, standardize the vehicle behavior and establish a good operation order. "National Transportation Supervision Service Platform" is one of the important products developed by Beijing Zhong Xing Road Information Technology Co., Ltd. (hereinafter referred to as "Zhong Xing Lu"), which is committed to the monitoring, management and information interaction of the national freight vehicle, in full ...

The "Editor's note" Container technology is a lightweight virtualization technology that allows you to virtualize a stand-alone system's operating environment with fine-grained granularity. This means that a physical server, or a virtual server above a cloud, can run hundreds of separate containers at the same time. Based on the distinctive features of "fast" in the gaming industry, every business logic, such as the control of character walking, fighting, scene, chatting, archiving, database, etc., can be run in a separate container. This series of containers constitutes the autonomous system of an independent gaming world. ...