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ksqlDB

The event streaming database purpose-built for stream processing applications

ksqlDB is an event streaming database for Apache Kafka. It is distributed, scalable, reliable, and real-time. ksqlDB combines the power of real-time stream processing with the approachable feel of a relational database through a familiar, lightweight SQL syntax. ksqlDB offers these core primitives:

• Streams and tables - Create relations with schemas over your Apache Kafka topic data • Materialized views - Define real-time, incrementally updated materialized views over streams using SQL • Push queries- Continuous queries that push incremental results to clients in real time • Pull queries - Query materialized views on demand, much like with a traditional database • Connect - Integrate with any Kafka Connect data source or sink, entirely from within ksqlDB

Composing these powerful primitives enables you to build a complete streaming app with just SQL statements, minimizing complexity and operational overhead. ksqlDB supports a wide range of operations including aggregations, joins, windowing, sessionization, and much more. You can find more ksqlDB tutorials and resources here.

License

Usage of this image is subject to the license terms of the software contained within. Please refer to Confluent's Docker images documentation reference for further information. The software to extend and build the custom Docker images is available under the Apache 2.0 License.