Haixun Wang, Jian Pei
Journal of Computer Science and Technology
A lack of power and extensibility in their query languages has seriously limited the generality of DBMSs and hampered their ability to support new applications domains, such as datamining. In this paper, we solve this problem by stream-oriented aggregate functions and generalized table functions definable by users in the SQL language itself-rather than in an external programming language. These simple extensions turn SQL into a powerful database language, Which can express a wide range of applications, including recursive queries, ROLAP aggregates, time-series queries, stream-oriented processing, and datamining functions.
Haixun Wang, Jian Pei
Journal of Computer Science and Technology
Min Xie, Haixun Wang, et al.
EDBT 2008
Haixun Wang, Chang-Shing Perng
PAKDD 2001
Peng Wang, Haixun Wang, et al.
ICDM 2006