公开(公告)号：US20120124031A1

公开(公告)日：2012-05-17

申请号：US13344562

申请日：2012-01-05

申请人： Saileshwar Krishnamurthy ,  Neil Thombre ,  Neil Conway ,  Wing Hang Li ,  Morten Hover

发明人： Saileshwar Krishnamurthy ,  Neil Thombre ,  Neil Conway ,  Wing Hang Li ,  Morten Hover

IPC分类号： G06F17/30

CPC分类号： G06F16/24568 ,  G06F16/24532 ,  G06F16/2471

摘要： Systems, methods, and media are disclosed herein that can be embodied in a traditional Relational Database Management System (RDBMS) in order to transform it into a Streaming Relational Database Management System (SRDBMS). An SRDBMS may provide functionality such as to manage and populate streams, tables, and archived stream histories and support the evaluation of continuous queries on streams and tables. Both continuous and snapshot queries support the full spectrum of the industry standard, widely used, Structured Query Language. The present technology can support a high number of concurrent continuous queries using a scalable and efficient shared query evaluation scheme, support on-the-fly addition of continuous queries into a mechanism that implements the shared evaluation scheme, reuse RDBMS modules such as relational operators and expression evaluators, and visualize results of continuous queries in real time