MemSQL is described as 'next generation database that removes the most common bottleneck most applications hit today: disk' and is an app in the Business & Commerce category. There are more than 10 alternatives to MemSQL for Windows, Linux, Mac, Online / Web-based and BSD. The best alternative is PostgreSQL, which is both free and Open Source. Other great apps like MemSQL are MySQL Community Edition (Free, Open Source), Microsoft SQL Server (Freemium), Oracle Database (Paid) and Clustrix (Paid).
PostgreSQL is a powerful, open source object-relational database system. It has more than 15 years of active development and a proven architecture that has earned it a strong reputation for reliability, data integrity, and correctness.
SQL Server delivers on Microsoft’s Data Platform vision by helping your organization manage your data by enabling you to store data from structured, semi-structured, and unstructured documents within the database.
MarkLogic is the only Enterprise NoSQL database, bringing all the features you need into one unified system: a document-centric, schema-agnostic, structure-aware, clustered, transactional, secure, database server with built-in search and a full suite of application services.
The Starcounter database is built with the real-time systems of today in mind. Real-time systems supporting thousands or millions of simultaneous users. Systems like online stores, location-based services or banking applications.
Amazon Redshift is a fast, fully managed, petabyte-scale data warehouse solution that makes it simple and cost-effective to efficiently analyze all your data using your existing business intelligence tools.
Postgres-XC is a write-scalable synchronous multi-master PostgreSQL cluster with the following features. 1) Both read and write scalability. 2) Configured with more than one server. 3) Complete global transaction and visibility management.