Online Trends

The five major database models, whether relational or non relational, are the realization of some data model. This article will give you a brief introduction of 5 common data models, so that we can trace back to the mysterious world behind the current popular database solutions. 1. The relational model relational model uses records (composed of tuples) for storage, records stored in tables, and tables are defined by the schema. Each column in the table has a name and a type, and all records in the table conform to the table definition. SQL is a specialized query language that provides the appropriate syntax for finding records that meet the criteria, such as ...

Recently, ZTE announced the United China Digital Library, jointly launched the "Cloud Library" business. This business is ZTE and China Digital Library deep cooperation, with ZTE Cloud computing application experience and marketing network as the support, the use of sophisticated digital library technology, Internet TV service technology, combined with the user's specific situation and actual needs, integration of many boutique columns, launched a new business. With the development of communication and it technology, the publishing industry faces the challenge and opportunity of transition from traditional printing to digital publishing. China Digital Library Limited Liability company (in short) is approved by the State Council ...

In order to let enterprises into the era of cloud services, you racked your brains, shirtless, your soul possessed ... Now that you have succeeded, the boss agreed to the proposal to sign the cloud. 　　So what's next? Of course, you will build a complete project plan, right? However, cloud computing is different from ordinary projects, and you need to consider its unique strengths and weaknesses. Let us ask you eight questions, you have to make a good answer, and then pull the switch, of course, before the cloud query, 51cto.com readers can refer to the following article "cloud computing" has become an inevitable trend ...

After SOA and WEB 2.0, cloud computing has become the hottest it technology today. As Microsoft's Chinese head, Dr. Zhang, says, cloud computing is changing the entire IT industry. So what is cloud computing? Why is cloud computing so powerful? Let's just quote Microsoft CEO Steve Ballmer, "Cloud is a revolutionary computing model that connects the computing devices at hand with the processing and storage capabilities of large data centers, Transform computing from limited resources to almost unlimited platforms, regardless of where you are, you can take users with them ...

The Giants ' clouds and cloud and end are two capabilities, but in the current Internet, Giants are aware of the importance of the same. Apple, Microsoft, Google and Facebook, though the hegemony at the top of the different levels, are too focused on the cloud to slack off. Apple strong cloud weak, but icloud has hundreds of millions of users, become the fastest to the cloud to users of the enterprise, Microsoft control PC-side, and home entertainment game-side Xbox, wireless terminals such as WIN8, Winphone8 and other mobile platforms, internet-side IE and MSN Messenger with ...

A: Hello everyone, I'm so glad to meet you here. 　　B: Hey, everybody. A: I'll introduce myself first. Why do I have to introduce myself? I'm not like the usual stand-up comedian. Crosstalk, just my sideline--part-time. 　　I work for the CIO myself. B: what UFO? You're a UFO? 　　An alien ship? A: Your ears are stuffed with pig hair, I'm the CIO. 　　Enterprise Chief Information Officer, is responsible for the management of Enterprise informatization. B: Management of Enterprise Informatization, is responsible for statistical staff name, age, love ...

Go to the hospital to wait for a doctor to register, take the medical record to go to see a doctor to do the examination, this kind of commonplace traditional doctor's consultation method, will because cloud computing quietly changes. Yesterday, the reporter learned from the organizing committee of the Yun Bo, "Medical cloud" this year will be the first pilot in Yongchuan, the future Yongchuan residents to see a doctor will be more convenient. Electronic Medical Record Hospital general "in the first half, ZTE will invest 1 billion yuan, in Yongchuan to build ZTE Global Cloud Service Center, the establishment of e-government, urban peace, education, medical services, such as cloud service platform." "Yesterday, Yongchuan Service Outsourcing Industrial Park, deputy director Fangxiaoyan told reporters." She gave an example of ...

Perhaps in the near future, just open the network, the mouse click on different tea-producing areas, you will be in the tea before germination know, the production of tea, quality, and even predict the use of raw materials produced by the production of tea products 10 years after the price. Yesterday, the reporter learned from Cloud tea network, after nearly a year of preparation, at present, the Cloud tea quotation system has entered a tense commissioning period, this month is expected to be a new look and the public meet. "Cloud tea quotation system, including cloud computing, a number of cutting-edge information technology, and in the process of building a quotation system, there are many technical innovations, is currently applying for a number of technical patents." ...

Peak Showdown: hypertable (c + +) throughput Test victory HBase (Java) as is well known, in 2006 Google unveiled its BigTable paper as another innovation after Google's two innovations in GFs and MapReduce, It has a great technical advantage in the design of the management structure data in the case of mass data processing. and Hypertable and HBase are the most well-known two based on the bigtable design of the database, their differences ...

Jackie Gilbert, co-founder and vice president of Sailpoint, said it was in trouble when an institution purchased a 6th or 8th SaaS application. We will see auditors pay more attention to this issue and more security issues related to this issue. Sailpoint sells software that enables these applications to comply with corporate policies. Gilbert says the IT department is discovering that if the department that buys these applications processes software settings or does not set them up, they cannot manage or control access to SALESFORC ...

Virtualization Challenges:a View from Server consolidation perspective Hui Lv, Yaozu Dong, Jiangang Duan, Kevin Tian in Monitors, we conduct a comprehensive study of Xen configured and Scalab ...

The security cloud service is the cloud computing technology in the network security domain application and expands thus realizes the network security namely the service the technology and the business model, it through will enhance the network security ability (including the access control, the DDoS protection, the virus and the malicious code detection and processing, the network traffic security detection and the filtering, Security filtering for applications such as mail, network scanning, web and other specific applications such as security detection, network anomaly flow detection, etc., such as resource clustering and pooling, so that users do not need their own security facilities for maintenance management and minimize the cost of service and business provider interaction, through mutual ...

As the 2012 cloud computing is widely used in life, cloud computing has long been integrated into our lives, but for the development of domestic cloud computing is still a lot of problems, the annual 3.15 is coming, on this special day, let us pay attention to how to distinguish between true and false cloud computing, find out "counterfeit cloud services", For users in the choice of cloud computing platform, need to be aware of the need to have five characteristics, that is, the use of transparent data center, unlimited purchase and automation mode, and finally include different client synchronization access functions, only including the five major points is the cloud ...

The Chinese Academy of Sciences, the Cloud Computing Center ("The Chinese Academy of Sciences Cloud Computing industry Technology Innovation and Development Center"), is in 2011 in Guangdong Province and CAs, the main leadership of the support and promotion, as Guangdong Province and the CAS strategic cooperation project, according to the Chinese Academy of Sciences and the Dongguan government signed the The Chinese Academy of Sciences, the cloud computing industry Technology Innovation and Development Center agreement, in Dongguan City, Guangdong province, the Songshan Lake high-tech Industrial development zone is directly under the large institutions. The Chinese Academy of Sciences Cloud Computing Center brings together the Chinese Academy of Sciences, Remote sensing, electronics, automation, software 、...

"It's cloud, it's not cloud," "You're not into the cloud." These statements are boring, and I don't think this is the core issue that Gartner's Magic Quadrant should be talking about. As long as the world merges, everything is cloud, even including my bike. At present, we usually use only one dimension to define the cloud service type, so we can only divide into Iaas,paas and SaaS three kinds, but in fact, this classification pattern is far from enough. I recently found that some people are trying to divide the cloud into a second dimension, creating the concept of "corporate cloud" and "Next Generation Cloud". After two years of communication and discussion, ...

Entering the second decade of the 21st century, China's internet world is undergoing great changes, new models and new trends are emerging, but to really find the business model of Internet products, but it is extremely difficult. 　　Through the study found that the "cloud-end" model will lead the Internet industry a new round of growth, the emergence of changes in the industrial structure of the Forces nouvelles. The "cloud-end" model mentioned above is believed by many people and is now being used in this mode. But what about the cloud power of China's internet companies? Today, I passed the China Internet Growth Trend report published by Analysys International to help ...

Resource load balancing method for energy consumption reduction in cloud environment Hu Zhigang, Ouyang, Kang in order to reduce the energy consumption of large-scale cloud data center and realize resource load balance to some extent, a method Lbes based on virtual machine migration is proposed. This method synthetically considers the problem of multiple resource load and cluster conflict, analyzes 3 key steps of virtual machine migration process, gives corresponding strategy, and realizes it in Cloud Simulator. Experimental results show that this method is better than other algorithms when the load distribution of physical nodes is seriously unbalanced. Read Link: H ...

Cloud computing-Cloud services--Zang Binyu Fudan University temp_12030115371482.pdf

Beijing time According to March 13 news, according to foreign media reports, cloud computing is based on Internet-related services to increase, use and delivery mode, it provides a reliable and secure data storage center, users can no longer worry about data loss, virus intrusion, in the technology to solve large-scale parallel computing, data distribution storage, real-time data backup, Applications are highly integrated and secure and personalized applications. Deeply welcomed by enterprises and individual users. The outlook for cloud computing is good, but the competition is fierce.　　 The following 20 cloud companies, as solution providers in the cloud domain comparative advantage. Acu ...

Community clouds can be viewed as part of a public cloud, dedicated to specific vertical industries, such as government, healthcare, or finance, to provide a range of services, including infrastructure as a service (PAAs), software as a service (SaaS), or platform as a service (PAAs). The National Institute of Standards and Technology (NIST) defines the community cloud as "a set of infrastructures shared by several organizations that support specific communities concerned with the same issues." "For example, the community cloud for the healthcare industry may be dedicated to meeting specific security and regulatory requirements to fit the health ...