Running the Perl example

This section describes the steps and commands you need to run the Perl example.

1. Start Sybase CEP Server.
2. Start Studio and create an input stream that has the following schema:

   Field Name	Data Type
   Symbol	String
   Price	Float

3. Copy the URI of this stream. To copy the URI, go to the Sybase CEP Studio window, select the Explorer View, then click on the stream, and then look at the Properties tab for the stream and copy the URI shown in the Stream URI field.

   Alternatively, you can see the stream URI in the top of the stream viewer window. See Acquiring the Address (URI) of a Stream for more information.

4. Execute the following command to start the publisher:

   
   perl -I C8 examples/c8_publish.pl <URI just copied>
   

5. Execute the following command to start the subscriber:

   
   perl -I C8 examples/c8_subscribe.pl <URI just copied>
   

   In this over-simplified example, the subscriber is actually reading from the input stream. We did this to minimize the number of steps that you would need to execute before you could see a publisher and subscriber working. In practice, you must also:

6. Create an output stream.
7. Look up the URI of that output stream.
8. Launch the subscribe.pl script with the URL of the output stream rather than the URL of the input stream.
9. Write one or more queries that fed data into the output stream.