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Getting Started with Oracle Event Processing 11g by Lloyd Williams, Robin J. Smith, Alexandre Alves

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The adopted event language

Let's now turn our attention to the abstracted event language used by the Oracle Event Processing Platform, which must provide the wealth of analysis on the streaming event data. Each event processor node in an event-driven application will contain one or more query statements.

Introducing the Continuous Query Language (CQL), based on †Stanford University research, and encompasses the SQL-99 standards with specific additions which extends the rigor of the relational model to event stream processing, resulting in a more robust implementation with broader in-memory application.

This language approach was adopted in part so that most customers who are already familiar with database SQL could easily extend their knowledge ...

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