confluentinc/ksqldb-cli repository overview

⁠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.