Why Are Data Often Kept In Tables

Editor's note: Jay Kreps, a chief engineer from LinkedIn, says that logs exist almost at the time of the computer's creation, and there is a wide range of uses in addition to distributed computing or abstract distributed computing models. In this paper, he describes the principles of the log and the use of the log as a separate service to achieve data integration, real-time data processing and distributed system design. Article content is very dry, worth learning. Here's the original: I joined the LinkedIn company at an exciting time six years ago. From that time ...

Editor's note: Jay Kreps, a chief engineer from LinkedIn, says that logs exist almost at the time of the computer's creation, and there is a wide range of uses in addition to distributed computing or abstract distributed computing models. In this paper, he describes the principles of the log and the use of the log as a separate service to achieve data integration, real-time data processing and distributed system design. Article content is very dry, worth learning. Here's the original: I joined the LinkedIn company at an exciting time six years ago. From that time ...

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 ...

MongoDB company formerly known as 10gen, founded in 2007, in 2013 received a sum of 231 million U.S. dollars in financing, the company's market value has been increased to 1 billion U.S. dollar level, this height is well-known open source company Red Hat (founded in 1993) 20 's struggle results. High-performance, easy to expand has been the foothold of the MongoDB, while the specification of documents and interfaces to make it more popular with users, this point from the analysis of the results of Db-engines's score is not difficult to see-just 1 years, MongoDB finished the 7th ...

Absrtact: This digest is from the first chapter of "Storytelling for User experience". Why tell a story? We all tell stories, it's one of the most natural ways to share information, and it's as old as humans. 　　This book is about how to make this digest in a completely new way from the first chapter of the storytelling for User experience. 　　Why tell a story? We all tell stories, it's one of the most natural ways to share information ...

Absrtact: This digest is from the first chapter of "Storytelling for User experience". Why tell a story? We all tell stories, it's one of the most natural ways to share information, and it's as old as humans. 　　This book is about how to make this digest in a completely new way from the first chapter of the storytelling for User experience. 　　Why tell a story? We all tell stories, it's one of the most natural ways to share information ...

Reprinted from: An extensive Guide to Web Form usability Author: Justin Mifsud Small Level Limited, lied, forget forgive ~! It must be a ~!. General discussion on Web Form usability specifications The following are a complete departure from what you will read, which is that it is not helpful to have a nice button, color, or even a full set of jquery plug-ins for your form. In fact, you just do it (by not warping the way) ...

A few months ago, I traveled long distances to the forest Park in the IBM Research Lab in New York State, York, to get a glimpse of the future of artificial intelligence that was in the offing. This is the research and development of the supercomputer "Watson", and Watson was at the "Brink" in 2011 (jeopardy!) The show was the top of the game. The original Watson computer is still here-it is a computer system that is about the size of a bedroom, surrounded by 10 upright freezer-type machines. Technicians can pass the system ...

Unsafe and unclean food is associated with the death of about 2 million people a year, most of them children. Foods containing harmful bacteria, viruses, parasites or chemicals can lead to more than 200 diseases, from diarrhea to cancer. A spokesman for the Hungarian Office of the World Health Organization (WHO) said that many of the diseases in Hungary are also related to unhealthy diet, belonging to several countries with unhealthy diets, in addition to the extremely high intake of salt and sugar, the consumption of antiseptic meat and canned food is also the head of Europe, especially when many families do not Instead of cooking once a week or more, put it in a freezer and eat it in stages ...

Absrtact: This digest is from the first chapter of "Storytelling for User experience". Why tell a story? We all tell stories, it's one of the most natural ways to share information, and it's as old as humans. 　　This book is about how to make this digest in a completely new way from the first chapter of the storytelling for User experience. 　　Why tell a story? We all tell stories, it's one of the most natural ways to share information ...