Introducing KSQL: Streaming SQL for Apache Kafka | Confluent
What does it even mean to query streaming data, and how does this compare to a SQL database? Well, it’s actually quite different to a SQL database. Most databases are used for doing on-demand lookups and modifications to stored data. KSQL doesn’t do lookups (yet), what it does do is continuous transformations— that is, stream processing. For example, imagine that I have a stream of clicks from use
Streaming SQL via MQTT - 2lemetry
So many of you found out about us because of our multi-protocol MQTT-focused broker. I think this is great – we’ve gotten our broker to scale up to high levels which has helped keep our customers’ costs low. But a publish/subscribe message broker alone will provide only so much value. Eventually you’ll need to sprinkle some event processing and web APIs onto your streams of raw sensor data. In thi
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