Chapter 13: Real-Time Data Analysis – Azure Stream Analytics

1. In Azure Stream Analytics, you pay for the Streaming Units (SUs).
2. Stream input lets you digest data directly from a stream. With reference input, you can select a service such as Azure Storage, which will be digested in intervals.
3. Application time is the time when an event was generated. Arrival time tells you when an event was received by the service.
4. SELECT Id INTO [output-alias] FROM [input-alias].
5. Yes, it is possible to work with multiple input values.
6. An event is out of order if you apply event ordering based on the arrival time, which will perturb the actual order of events.
7. Yes, you can—to do so, you have to use the SUBSTRING function.