Good Database Design Structure Examples

A good database product is not equal to have a good application system, if can not design a reasonable database model, not only will increase the client and Server section program programming and maintenance of the difficulty, and will affect the actual performance of the system. Generally speaking, in an MIS system analysis, design, test and trial run stage, because the data quantity is small, designers and testers often only notice the realization of the function, but it is difficult to notice the weak performance, until the system put into actual operation for some time, only to find that the performance of the system is decreasing, At this point to consider improving the performance of the system will cost more ...

Storing them is a good choice when you need to work with a lot of data. An incredible discovery or future prediction will not come from unused data. Big data is a complex monster. Writing complex MapReduce programs in the Java programming language takes a lot of time, good resources and expertise, which is what most businesses don't have. 　　This is why building a database with tools such as Hive on Hadoop can be a powerful solution. Peter J Jamack is a ...

Building a fully service-oriented system has always been the goal pursued by Twitter, and from the previous article, we shared Twitter to cope with the overall 143,000 TPS peak system overview, but the details of the various service components are not involved. Fortunately, the company recently disclosed Manhattan's independently developed database system, which delivers in-service features while delivering features such as high availability and availability. The following is translation: As Twitter grows into a global user exchange ...

With a growing number of Web fonts, paid Web font services, and off-the-shelf tools, typography takes back its title as the Queen of Design and is the key to all graphics and web design. Today, many designers in the design of typesetting, the main consideration is essentially aesthetic issues. The problem is that we are used to treating typography and font design as two interchangeable terms, but actually they are different. Take a quick look at the label "typography" on the dribbble and see the trend immediately. The perfect use of the temptation of font design will affect our trial ...

This article from the original is the country Kenji students in Zhejiang University translation, the original author: Jamie Appleseed, view the original if you can not pay, he will not be able to buy anything from you, and therefore supports a wide variety of payment options to ensure that users can pay you. However, in our study of payment availability, finding that providing multiple payment methods for users introduces complexity into the payment process and must be carefully designed to avoid confusion and choice difficulties. For international websites, supporting a wide variety of payment methods is not just a matter of user preference.

VMware suddenly released its first open source Paas--cloudfoundry this April. In the months since its release, the author has been concerned about its evolution and benefited from its architectural design, and felt the need to write to share it with you. This article will be divided into two parts: the first part mainly introduces the architecture design of Cloudfoundry, from the module that it contains, to the information flow of each part, how the modules coordinate and cooperate; The second part will be based on the first part, how to use Clou in your data center ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall September 28 Evening News, after a number of information technology experts and technical Experts interrogation 12306, everyone finally pointed to the same problem, 12306 products do not give force, and product design and operation management team experience is not a certain relationship. 　　   　　The following 2 examples, or to some extent, confirm the expert's judgment. Sohu It exclusive anatomy of the 12306 site map according to the Ministry of Railways in early 2012, the release of information to see, 12 ...

The intermediary transaction SEO diagnoses Taobao guest cloud host technology Hall "CSDN report" July 9 afternoon, CSDN Tup 11th "architect Salon--internet research and development way" at the Chinese Academy of Sciences Computing Technology Research Institute of the first floor report Hall held, The event invited the industry research and development of strong Tencent and watercress guests to share the Internet product development experience, the industry more than 300 technical managers came to the scene. Tencent search operations research and Development management Director Li Juan, Tencent R&d project director Jing, Tencent Pet Client main program, senior soft ...

For most web sites, the shopping cart is the site of the throat, the order is white silver, all the money must flow through the shopping cart, shopping cart can not be lost. Excellent shopping cart design requires at least two missions: one is to facilitate the user to buy more goods to pay more money, and the second is to help users to take care of the goods to be purchased, convenient next time to dig silver. Shopping cart is a more complex system, usually with orders, merchandise, inventory, membership and promotional modules have an ambiguous relationship, is also regarded as far-reaching. Therefore, it is not easy to direct your programmer to modify the shopping cart without knowing the cart. Said this ...

The intermediary transaction SEO diagnose Taobao guest Cloud host technology Hall Station group, believed that many stationmaster are more concerned, A5 Group purchase also arranged several station group management software buys, the field is hot. 　　Near the time of the various key words in Baidu ranked the first few pages of the incident, let everyone see the strength of the station group, do not know whether seoer feel the pressure. January 6 Admin5 Thursday Edition chat activity, together A5 Group purchase channel http://tuan.admin5.com organization about "the station group development and the profit pattern discussion" question ...