The Best 51 Microsoft SQL Server Alternatives

  • UnQLite

    UnQLite is a in-process software library which implements a self-contained, serverless, zero-configuration, transactional NoSQL database engine. UnQLite is a document...

    Free Open Source Mac OS X Windows Linux

  • Datomic

    Datomic is a database of flexible, time-based facts, supporting queries and joins, with elastic scalability, and ACID transactions.

    Freemium Mac OS X Windows Linux

  • Database Labs

    A Postgres Database as a Service platform so you can focus on writing your app, not on becoming a database administrator.

    Commercial Mac OS X Windows Linux BSD Web

  • Oracle TimesTen

    TimesTen is a memory-optimized, relational database management system with persistence and recoverability. Originally designed and implemented at Hewlett-Packard labs in...

    Commercial Windows Linux

  • Postgres-XC

    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...

    Free Open Source Linux

  • SAP HANA

    SAP HANA is a completely re-imagined platform for real-time business. It transforms business by streamlining transactions, analytics, planning, predictive, sentiment...

    Commercial Web

  • ScimoreDB

    Home of Scimore Distributed SQL database and Scimore Embedded SQL database. Both supports SQL, ACID for both DDL&DML, advanced query prioritization and...

    Free Windows

  • Vertica

    Vertica is a grid-based, column-oriented database designed to manage large, fast-growing volumes of data and provide very fast query performance when used for data...

    Commercial Linux

  • VoltDB

    VoltDB is a blazingly fast NewSQL database system. It is specifically designed to run on modern scale-out architectures - fast, inexpensive servers connected via...

    Free Open Source Mac OS X Windows Linux

  • VistaDB

    VistaDB is an embedded database engine for Visual Studio .Net developers (C# / VB.NET) with TSQL Procs, CLR procs, XCopy deployment, and much more.

    Commercial Windows