More About Sybase CEP Components
A closer look at Sybase CEP components including time, data streams, windows, schemas, datatypes, adapters and query modules. You will need a basic understanding of these components to begin working with CCL queries.
- How Streams Work in Sybase CEP
Data streams are the fundamental way in which data is transmitted throughout Sybase CEP. CCL queries take data from data streams, process that data, and send it to other streams. While data streams are similar to database tables, database tables are comparatively static while the data flow in a stream is ongoing and continuous.
- How Windows Work in Sybase CEP
A description of how CCL windows maintain row states in Sybase CEP Engine.
- Introducing Schemas
All data streams and windows have schemas that specify their structure. A schema specifies the number and names of the columns in the stream or window and indicates each column's datatype. Schemas may be created explicitly by the user and associated with a particular stream or window, or, in some cases, a schema for an output stream may be inferred by Sybase CEP from the contents of the query.
- Query Paths and Query Pipelining
Inside Sybase CEP Engine, streams, windows, and queries can combine to route data along a single path, separate it along multiple paths, or merge it from multiple paths into one. Multiple CCL queries can be pipelined together, in which each successive query subscribes to the data stream published by the previous query.
- About Query Modules
CCL queries are stored in query modules. A query module is a reusable group of one or more queries, all of which are compiled and executed together.
- Putting the Basic Elements Together
A description of tasks you must complete before you can successfully execute CCL queries.
Created March 8, 2010. Send feedback on this help topic to Sybase Technical Publications:
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