What is mean by event-oriented in Mapr Streams?
Event-oriented means that there is a specific event ("something happens") that triggers some sort of action. For example, with sensor data, an "event" might be that the temperature is detected as being too high, which would cause an alert to be sent.
On a side note, it would be great if you would include some keywords about your question in the title of the question. That will help others who have similar questions find yours, and get answers.
Retrieving data ...