SingleStore is a real-time, distributed SQL database that offers familiar SQL tooling and MySQL wire protocol compatibility. It supports multiple data types, including JSON, time-series, geospatial, and full-text search, delivering high-speed data ingestion on a unified transactional (OLTP) and analytical (OLAP) foundation. In contrast, ClickHouse is a real-time data warehouse and open-source database that uses a highly performant columnar database built primarily for analytics. It leverages vertical partitioning, vectorized query execution, and advanced compression techniques to achieve exceptionally fast query performance on large datasets. Key differences between SingleStore and ClickHouse include their primary focus, storage model, query execution engine, data ingestion capabilities, data updates, workload flexibility, scalability, compression, sharding, and use case fit. Both databases offer cloud-based deployment options and support for various data types, including JSON. However, SingleStore is better suited for real-time analytics, mixed workload consolidation, and simplifying data infrastructure, while ClickHouse is primarily optimized for analytical queries.