Data Management

K*SQL: A Unifying Engine for Sequence Patterns and XML

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Executive Summary

A strong interest is emerging in SQL extensions for sequence patterns using Kleene-closure expressions. This burst of interest from both the research community and the commercial world is due to the many database and data stream applications made possible by these extensions, including financial services, RFID-based inventory management, and electronic health systems. In this demo, the authors will present the KSQL system that represents a major step forward in this area. KSQL supports a more expressive language that allows for generalized Kleene-closure queries and also achieves the expressive power of the nested word model, which greatly expands the application domain to include XML queries, software trace analysis, and genomics.

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