Rules Engine Database Schema

As a software developer or DBA, one of the essential tasks is to deal with databases, such as MS SQL Server, MySQL, Oracle, PostgreSQL, MongoDB, and so on. As we all know, MySQL is currently the most widely used and the best free open source database, in addition, there are some you do not know or useless but excellent open source database, such as PostgreSQL, MongoDB, HBase, Cassandra, Couchba ...

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.

Big data may be the most hot word in the tech world and VC circles. It seems that internet companies, even traditional industry companies, that don't have much of a big data connection have no future. is a hot word, there must be a bubble. Under the bubble, some companies that are really creating and digging into big data values, especially startups, are not known. There are companies that may still be in stealth mode, and they are now busy finishing the final finishing touches that will make it possible to change the rules of the game. Many of these big data startups ' teams come from Google ...

Big data may be the most hot word in the tech world and VC circles. It seems that internet companies, even traditional industry companies, that don't have much of a big data connection have no future. is a hot word, there must be a bubble. Under the bubble, some companies that are really creating and digging into big data values, especially startups, are not known. There are companies that may still be in stealth mode, and they are now busy finishing the final finishing touches that will make it possible to change the rules of the game. Many of these big data startups ' teams come from Google ...

This paper focuses on my views on the trends of automation and control in the 2013 and beyond. These comments are based on a wide range of users, suppliers and industry advisors, and are attended by numerous industry forums, conferences and trade exhibitions each year.   　　Designers with years of practical experience in the field of automation and control are also reflected in these views. Enterprise Automation system Any reasonable scale is not possible industrial plant installation has a single control system architecture trend is to have a software platform, unified operation and information flow to improve decision-making, improve flexibility ...

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall now, many sites are using a database based content management System (CMS) to create and manage. 　　The beneficial side of the CMS is that when you have thousands of pages, you don't have to make HTML pages on one page, but there are some disadvantages to CMS. What bothers us most about today's content management Systems (CMS) is the lack of SEO (search engine Optimization) functionality. This SEO does not mean that only can provide meta keywords such functions, the current ...

The intermediary transaction SEO diagnoses Taobao guest cloud host technology Hall "operation reference proposal" 1. Business treasure: After the user volume up, began to do vertical industry portal (this you can consider the first start, so that each industry accumulation, forming a number of core circles); In addition, to join the enterprise SNS concept, Business Treasure has a more famous column called "Business Circle", you can pay close attention to, 2. Ufida: Recently in the push "Ufida uu community", but also business circle is this idea, you can see (business people on this piece of demand or quite ...)