Ying is specialized in the study of the internal principles, new features, wide-range applications and performance optimizations of Oracle. He has been keeping up with the emerging trends of new discoveries, paying close attention to related Oracle techniques and other knowledge, and actively participating in the discussions in various database-specialized forums. Therefore, he is assigned as the moderator of database sub-section in the Chinese biggest Oracle Technique Forum (www.itpub.net). Meanwhile, he regularly updates the blogs with his articles and findings related to Oracle, and his blogs are authenticated as Recommended Professional Blogs by the ITPub forum. The visitor volume so far has been more than a Million. Through this forum, Yifeng shares his experience and skills of Oracle, and organized several online multi-party conferences aimed at communicating, sharing and helping others solve problems met at work.