Confluent KSQL DB on Ubuntu 24.04

Confluent ksqlDB is a fully managed, real-time stream processing database built on Apache Kafka that allows developers to process, transform, and analyze streaming data using standard SQL. It enables event-driven architectures by turning Kafka topics into continuously updated tables and streams without requiring complex stream-processing code.

ksqlDB is widely used for real-time analytics, microservices communication, data enrichment, fraud detection, and operational monitoring. It supports continuous queries, stateful stream processing, joins, aggregations, and windowing, making it ideal for building scalable, event-driven applications.

Features of Confluent ksqlDB:

• SQL-based stream and table processing on Apache Kafka.
• Real-time data transformation, filtering, and aggregation.
• Supports stateful stream processing with joins and windowing.
• Native integration with Kafka topics and Confluent Platform.
• Scalable, fault-tolerant, and designed for event-driven architectures.
• Supports CLI-based and REST API-based interaction.

To verify ksqlDB access and configuration, use the following steps:

 Configure Kafka / Confluent credentials: $ ksql

List available streams:
$ SHOW STREAMS;

List available tables:
$ SHOW TABLES;

Describe a stream or table:
$ DESCRIBE ;

Disclaimer:
Confluent ksqlDB requires an external Apache Kafka or Confluent Platform environment. This product does not bundle Kafka brokers or client applications. Users are responsible for configuring Kafka clusters, networking, authentication, access control, and resource management according to their deployment requirements.