Database Schema Design Online

After more than eight years of practice, from Taobao's collection business to today to support all of Alipay's core business, and in the annual "Double Eleven Singles Day" continue to create a world record for the transaction database peak processing capacity.

1.1: Increase the secondary data file from SQL SERVER 2005, the database does not default to generate NDF data files, generally have a main data file (MDF) is enough, but some large databases, because of information, and query frequently, so in order to improve the speed of query, You can store some of the records in a table or some of the tables in a different data file. Because the CPU and memory speed is much larger than the hard disk read and write speed, so you can put different data files on different physical hard drive, so that the execution of the query, ...

HBase is a distributed, column-oriented, open source database based on Google's article "Bigtable: A Distributed Storage System for Structured Data" by Fay Chang. Just as Bigtable takes advantage of the distributed data storage provided by Google's File System, HBase provides Bigtable-like capabilities over Hadoop. HBase Implements Bigtable Papers on Columns ...

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 ...

Recently busy graduate design, the need for document translation. I thought that before the translation of a poor, but always feel not rigorous enough. My graduation project is mainly to help the teacher's institute to be a website, already have a website, but the teacher and I think the old version of the site is very old. So volunteered. The site needs to be refactored, and the Natural Information Architecture section is an important part of it, though it has also been seen quite a bit before, such as "thinking of the OR search in the kitchen" is a sign of thought, but systematically translating the Five Simple Steps team Works of "A Practical G ...

As architects and designers, we often focus on what we have at hand and seldom reflect on the past. We should know the new from the warm. I've summed up 6 experiences from my 55-month experience as the Skype architecture group. Some are technical and others are softer views of the architect. First, introduce Skype background information. Skype background Skype is software that allows users to make audio and video calls, and can also make regular calls and send short messages. The company was founded in 2003, since its inception there is an incredible growth song ...

Cloud computing multi-tenant is used for almost all software as a service (Software as a Service,saas) application because computing resources are scalable and the allocation of these resources is determined by actual usage. That said, users can access multiple types of SaaS applications over the Internet, from small internet-based widgets to large enterprise software applications. Security requirements are growing, depending on the data on the infrastructure of software vendors that are stored outside the corporate network. Applications requiring multiple tenants are many original ...

The development of the Internet today is not the era of fish, but the time of fast fish eating slow fish. The winning principle of Internet products is a word-"fast". In various forms of product development, we always implement one of the values is "fast", how should we understand and interpret "fast"? What are the ways to implement this principle? First, rapid iteration, quick to do the Internet product is different from the traditional software development, we are faced with hundreds of millions of users such a huge user group, who they are, what preferences, what kind of habits, how to use our products, ...

Uncover 10 effective tips for completing software as a service (SaaS) application in a budget on time to achieve a satisfactory return on investment. Software provided in the form of online services rather than desktop applications continues to grow exponentially. I have been involved in the development of many company SaaS projects. Based on these experiences, I have summed up 10 ...

The greatest fascination with large data is the new business value that comes from technical analysis and excavation. SQL on Hadoop is a critical direction. CSDN Cloud specifically invited Liang to write this article, to the 7 of the latest technology to do in-depth elaboration. The article is longer, but I believe there must be a harvest. December 5, 2013-6th, "application-driven architecture and technology" as the theme of the seventh session of China Large Data technology conference (DA data Marvell Conference 2013,BDTC 2013) before the meeting, ...