Azure Stream Analytics is a real-time analytics service provided by Microsoft Azure. It enables users to process and analyze streaming data from various sources, such as IoT devices, social media, and applications. With its SQL-like query language, users can easily create queries to extract insights and detect patterns in data as it flows. The service is designed to handle large volumes of data with low latency, making it suitable for scenarios like real-time dashboards, anomaly detection, and event-driven applications. Azure Stream Analytics integrates seamlessly with other Azure services, such as Azure Functions and Power BI, enhancing its capabilities for data visualization and further processing.