Describe Database

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 ...

April 24, we released a preview version of the SQL Database base level (preview) and standard (preview) new service levels and new business continuity features. In this blog post, we delve into the performance of new levels in SQL Database. Begin with the need for change. We focus on performance (specifically predictable performance) in new service levels, driven primarily by strong customer feedback on SQL Database Web-Level and enterprise-class performance. Web-and enterprise-level performance ...

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.

As long as you master the following method, you can basically get the mysql database. First, the connection MYSQL format: mysql-h host address-u username-p user password 1, Example 1: Connect to the local MySQL: First open the DOS window and then enter the directory mysqlbin, then type the command mysql -uroot - p, after the carriage return prompts you to lose the password, if you just installed MYSQL, super user root is no password, so enter directly into MYSQL, MYS ...

Recently read some articles about the development of database technology, basically revolve around the discussion of SQL and NoSQL to unfold. Remember when the NoSQL movement just started, "Dour No to SQL" slogan, of course, the slogan did not become a reality, people eventually accepted the not-only of SQL. But really to give NoSQL the next definition, it is not easy, people used to MongoDB, Redis such products as a general definition of NoSQL, can be attributed to the "four major categories." But ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest Cloud host technology Hall willing to network support 10 million pv/database caching system is mainly built in hibernate Above the efficient database caching system, which contains a distributed solution, the system has been used to be willing to online, did not find a big problem, I also believe that the system is strong enough to cope with millions of ...

Absrtact: According to Arthur Hughes of the American Database Marketing Institute, there are three magical elements in the customer database that make up the best indicators of data analysis: The most recent consumption (recency) consumption frequency (Frequency) consumption amount (mone According to Arthur Hughes of the American Database Marketing Institute, there are three magical elements in the customer database, which constitute the best indicators of data analysis: The most recent consumption (recency) consumption frequency (Freq ...).

DEDECMS database Structure table name: Dede_channeltype field description is as follows: Table name: Dede_channeltype (ENGINE=MYISAM/CHARSET=GBK) Description: Custom model (channel) table field name description describes specific parameters Sendrank support submission member level smallint (6) Not NULL DEFAULT ' ten ', needpic need thumbnail tinyint (1) N ...

DEDECMS database Structure table name: Dede_addonspec field description as follows: Table name: Dede_addonspec (ENGINE=MYISAM/CHARSET=GBK) Description: Topic Additional table field name Description Description specific Parameters Note topic record fields Text, typeid column ID smallint (5) unsigned not NULL DEFAULT ' 0 ', Templet Custom Template ...

With the concept of cloud computing gradually being the concern of people, the gradual application in China, the cloud computing new things - cloud storage applications, as the current front-end products closest to the end user, has been the industry's attention and Fierce competition. In recent years, mobile office storage, communications data storage companies emerge in an endless stream of public attention. The rise of mobile Internet also makes the traditional mobile terminal enterprises began to aim at the cloud storage of this fragrance. Some time ago, Aliyun developers conference held in Hangzhou, the comprehensive inventory of Aliyun platform construction over the past year, technological innovation and so on ...