List of the Top 4 Columnar Databases for Tableau in 2025

StarTree Cloud functions as a fully-managed platform for real-time analytics, optimized for online analytical processing (OLAP) with exceptional speed and scalability tailored for user-facing applications. Leveraging the capabilities of Apache Pinot, it offers enterprise-level reliability along with advanced features such as tiered storage, scalable upserts, and a variety of additional indexes and connectors. The platform seamlessly integrates with transactional databases and event streaming technologies, enabling the ingestion of millions of events per second while indexing them for rapid query performance. Available on popular public clouds or for private SaaS deployment, StarTree Cloud caters to diverse organizational needs. Included within StarTree Cloud is the StarTree Data Manager, which facilitates the ingestion of data from both real-time sources—such as Amazon Kinesis, Apache Kafka, Apache Pulsar, or Redpanda—and batch data sources like Snowflake, Delta Lake, Google BigQuery, or object storage solutions like Amazon S3, Apache Flink, Apache Hadoop, and Apache Spark. Moreover, the system is enhanced by StarTree ThirdEye, an anomaly detection feature that monitors vital business metrics, sends alerts, and supports real-time root-cause analysis, ensuring that organizations can respond swiftly to any emerging issues. This comprehensive suite of tools not only streamlines data management but also empowers organizations to maintain optimal performance and make informed decisions based on their analytics.

OpenText Analytics Database, formerly known as Vertica Data Platform, is a powerful analytics database designed to provide ultra-fast, scalable analysis of massive data volumes with minimal compute and storage requirements. It enables organizations to unlock real-time insights and operational efficiencies by combining high-speed analytics with integrated machine learning capabilities. The platform’s massively parallel processing (MPP) architecture ensures that complex, resource-intensive queries run efficiently regardless of dataset size. Its columnar storage format optimizes both query speed and storage utilization, significantly reducing disk I/O. OpenText Analytics Database seamlessly integrates with data lakehouse environments, supporting popular formats like Parquet, ORC, AVRO, and native ROS, providing versatile data accessibility. Users can query and analyze data using multiple languages, including SQL, R, Python, Java, and C/C++, catering to a wide range of skill sets from data scientists to business analysts. Built-in machine learning functions enable users to build, test, and deploy predictive models directly within the database, eliminating the need for data movement and accelerating time to insight. Additional in-database analytics functions cover time series analysis, geospatial queries, and event-pattern matching, providing rich data exploration capabilities. Flexible deployment options allow organizations to run the platform on-premises, in the cloud, or in hybrid setups to optimize infrastructure alignment and cost. Supported by OpenText’s professional services, training, and premium support, the Analytics Database empowers businesses to drive revenue growth, enhance customer experiences, and reduce time to market through data-driven strategies.

We simplify and enhance the efficiency of Business Intelligence (BI) and Big Data analytics. Our aim is to equip business users and BI specialists, as well as busy professionals, to work independently when tackling data-centric challenges. Querona serves as a solution for anyone who has experienced the frustration of insufficient data, slow report generation, or long wait times for BI assistance. With an integrated Big Data engine capable of managing ever-growing data volumes, Querona allows for the storage and pre-calculation of repeatable queries. The platform also intelligently suggests query optimizations, facilitating easier enhancements. By providing self-service capabilities, Querona empowers data scientists and business analysts to swiftly create and prototype data models, incorporate new data sources, fine-tune queries, and explore raw data. This advancement means reduced reliance on IT teams. Additionally, users can access real-time data from any storage location, and Querona has the ability to cache data when databases are too busy for live queries, ensuring seamless access to critical information at all times. Ultimately, Querona transforms data processing into a more agile and user-friendly experience.

An enterprise-grade database designed for handling time series, documents, and vectors. It allows for the storage of diverse data types while merging the ease and scalability of NoSQL with the capabilities of SQL. CrateDB stands out as a distributed database that executes queries in mere milliseconds, no matter the complexity, data volume, or speed of incoming data. This makes it an ideal solution for organizations that require rapid and efficient data processing.