MemSQL vs VoltDB: What are the differences?

MemSQL: Database for real-time transactions and analytics. MemSQL converges transactions and analytics for sub-second data processing and reporting. Real-time businesses can build robust applications on a simple and scalable infrastructure that complements and extends existing data pipelines; VoltDB: In-memory relational DBMS capable of supporting millions of database operations per second. VoltDB is a fundamental redesign of the RDBMS that provides unparalleled performance and scalability on bare-metal, virtualized and cloud infrastructures. VoltDB is a modern in-memory architecture that supports both SQL + Java with data durability and fault tolerance.

MemSQL and VoltDB can be primarily classified as "In-Memory Databases" tools.

Some of the features offered by MemSQL are:

• ANSI SQL Support
• Fully-distributed Joins
• Compiled Queries

On the other hand, VoltDB provides the following key features:

• In-Memory Performance with On-Disk Durability
• Transparent Scalability with Data Consistency
• NewSQL – All the benefits of SQL with Unlimited Scalability