1.3.1 What you can define in a query

Stream Data Platform - AF uses predefined scenarios to analyze the stream data that has been input into the stream data processing engine and then outputs the results of analysis that you have set up to meet your objectives.

A scenario is defined as a query in a query definition file. The content to be defined in a query is described below.

You define queries using a query language called CQL, which is similar to SQL.

Details about how to define queries using CQL are explained in 2. Using CQL to Define Queries. Details about how to code CQL are also explained in 3. CQL Basic Items and Data Types and 4. CQL Reference. For details about the query definition file, see the uCosminexus Stream Data Platform - Application Framework Setup and Operation Guide.

You can also define a new query definition file based on a sample file. Details about the sample files are explained in 5. Query Definition Samples.