Duan Yunfeng received a doctorate degree from Beijing University of Posts and Telecommunications in 2001 and a postdoctoral degree in information and communications engineering at Peking University in 2005. During his work at China Mobile, he innovatively proposed the hierarchical data warehouse theory internationally, presided over the design and construction of China Mobile's data warehouse system, invested tens of billions of yuan to build the current data warehouse system with the largest capacity in the international world (as of June 2006 it reached 1,416TB storage capacity). Various business applications of data warehouses (reports/indicators/OLAP/data mining, etc.) were systematically introduced in China for the first time, and for the first time, a relatively systematic data warehouse data quality management system was established based on metadata XML. Through the largest data warehouse system he presided over and designed, many gaps in domestic technology and application in the data warehouse field have been filled, and a number of domestic manufacturers and research forces in the data warehouse field have been driven, which has played a positive role in promoting the development of the domestic data warehouse industry.
Duan Yunfeng expressed his views on IBM's new DB2 9 database product:
“IBM DB2 9 I think it will be of great help to end users in three aspects.
The firstIt is an enhancement of XML technology. This feature can help users integrate various data sources. Therefore, through this integration of XML technology reference, users can flexibly apply new data sources and complex data sources, which should be said to be a great improvement for the entire database technology.
The second oneThe aspect is its compression technology. Because there is a lot of information in the information society now, the capacity of relevant data will be expanding more and more. From this perspective, it should be said that by using compression technology, the cost of storage is effectively controlled, especially the large amount of data and massive amount of data, which is of great help to users.
ThirdThe main value of DB2 in this 9 version is in security control, and some enhancements to the data access control functions. This is very helpful for actual use. Because throughout the application process, the data involves a lot of sensitive information.
From the user's perspective, in terms of application, he hopes that fixed users can only see fixed information. From a traditional perspective, we can only control it at the application level, and there will inevitably be some mistakes. Now, from the perspective of DB2 9 version, the entire system development, including security control capabilities, has been greatly improved.
In short, from the user's perspective, I think the DB2 9 version is of great help to the application of massive data, large information processing, especially in data warehouses and other applications. Many new features and functions are of great help to actual applications. So I think from the perspective of users, it is particularly practical. We welcome DB2 to continuously launch new versions, solve new problems, improve application and development capabilities, and develop more and better software for users."
Duan Yunfeng expressed his views on IBM's new DB2 9 database product:
“IBM DB2 9 I think it will be of great help to end users in three aspects.
The firstIt is an enhancement of XML technology. This feature can help users integrate various data sources. Therefore, through this integration of XML technology reference, users can flexibly apply new data sources and complex data sources, which should be said to be a great improvement for the entire database technology.
The second oneThe aspect is its compression technology. Because there is a lot of information in the information society now, the capacity of relevant data will be expanding more and more. From this perspective, it should be said that by using compression technology, the cost of storage is effectively controlled, especially the large amount of data and massive amount of data, which is of great help to users.
ThirdThe main value of DB2 in this 9 version is in security control, and some enhancements to the data access control functions. This is very helpful for actual use. Because throughout the application process, the data involves a lot of sensitive information.
From the user's perspective, in terms of application, he hopes that fixed users can only see fixed information. From a traditional perspective, we can only control it at the application level, and there will inevitably be some mistakes. Now, from the perspective of DB2 9 version, the entire system development, including security control capabilities, has been greatly improved.
In short, from the user's perspective, I think the DB2 9 version is of great help to the application of massive data, large information processing, especially in data warehouses and other applications. Many new features and functions are of great help to actual applications. So I think from the perspective of users, it is particularly practical. We welcome DB2 to continuously launch new versions, solve new problems, improve application and development capabilities, and develop more and better software for users."