List of the Top 3 Relational Database for Apache Spark in 2025

SingleStore, formerly known as MemSQL, is an advanced SQL database that boasts impressive scalability and distribution capabilities, making it adaptable to any environment. It is engineered to deliver outstanding performance for both transactional and analytical workloads using familiar relational structures. This database facilitates continuous data ingestion, which is essential for operational analytics that drive critical business functions. With the ability to process millions of events per second, SingleStore guarantees ACID compliance while enabling the concurrent examination of extensive datasets in various formats such as relational SQL, JSON, geospatial data, and full-text searches. It stands out for its exceptional performance in data ingestion at scale and features integrated batch loading alongside real-time data pipelines. Utilizing ANSI SQL, SingleStore provides swift query responses for both real-time and historical data, thus supporting ad hoc analysis via business intelligence applications. Moreover, it allows users to run machine learning algorithms for instant scoring and perform geoanalytic queries in real-time, significantly improving the decision-making process. Its adaptability and efficiency make it an ideal solution for organizations seeking to extract valuable insights from a wide range of data types, ultimately enhancing their strategic capabilities. Additionally, SingleStore's ability to seamlessly integrate with existing systems further amplifies its appeal for enterprises aiming to innovate and optimize their data handling.

Discover the advantages of serverless and interactive data querying with IBM Cloud Object Storage, which allows you to analyze data at its origin without the complexities of ETL processes, databases, or infrastructure management. With IBM Cloud SQL Query, powered by Apache Spark, you can perform high-speed, flexible analyses using SQL queries without needing to define ETL workflows or schemas. The intuitive query editor and REST API make it simple to conduct data analysis on your IBM Cloud Object Storage. Operating on a pay-per-query pricing model, you are charged solely for the data scanned, offering an economical approach that supports limitless queries. To maximize both cost savings and performance, you might want to consider compressing or partitioning your data. Additionally, IBM Cloud SQL Query guarantees high availability by executing queries across various computational resources situated in multiple locations. It supports an array of data formats, such as CSV, JSON, and Parquet, while also being compatible with standard ANSI SQL for query execution, thereby providing a flexible tool for data analysis. This functionality empowers organizations to make timely, data-driven decisions, enhancing their operational efficiency and strategic planning. Ultimately, the seamless integration of these features positions IBM Cloud SQL Query as an essential resource for modern data analysis.

Apache Phoenix effectively merges online transaction processing (OLTP) with operational analytics in the Hadoop ecosystem, making it suitable for applications that require low-latency responses by blending the advantages of both domains. It utilizes standard SQL and JDBC APIs while providing full ACID transaction support, as well as the flexibility of schema-on-read common in NoSQL systems through its use of HBase for storage. Furthermore, Apache Phoenix integrates effortlessly with various components of the Hadoop ecosystem, including Spark, Hive, Pig, Flume, and MapReduce, thereby establishing itself as a robust data platform for both OLTP and operational analytics through the use of widely accepted industry-standard APIs. The framework translates SQL queries into a series of HBase scans, efficiently managing these operations to produce traditional JDBC result sets. By making direct use of the HBase API and implementing coprocessors along with specific filters, Apache Phoenix delivers exceptional performance, often providing results in mere milliseconds for smaller queries and within seconds for extensive datasets that contain millions of rows. This outstanding capability positions it as an optimal solution for applications that necessitate swift data retrieval and thorough analysis, further enhancing its appeal in the field of big data processing. Its ability to handle complex queries with efficiency only adds to its reputation as a top choice for developers seeking to harness the power of Hadoop for both transactional and analytical workloads.