Jianjun Chen Papers on DiSC'01 NiagraCQ: A Scalable Continuous Query System for Internet Databases Publications Note: Links lead to the DBLP on the Web. Jianjun Chen 1 Jianjun Chen, David J. DeWitt , Feng Tian , Yuan Wang : NiagraCQ: A Scalable Continuous Query System for Internet Databases. SIGMOD Conference 2000 : 379-390 DiSC'01 Copyright ©2002 ACM Inc.