IBM DB2 is described as 'DB2 offers industry leading performance, scale, and reliability on your choice of platform from Linux to z/OS. DB2 supports storing XML and relational data and offers SQL PL and PL/SQL procedural languages' and is a relational database in the development category. There are more than 50 alternatives to IBM DB2 for a variety of platforms, including Windows, Linux, Mac, Web-based and Self-Hosted apps. The best IBM DB2 alternative is DBeaver, which is both free and Open Source. Other great apps like IBM DB2 are SQLite, PostgreSQL, MySQL Community Edition and MongoDB.
H2 is a relational database management system written in Java. It can be embedded in Java applications or run in the client-server mode. The disk footprint (size of the jar file) is about 1 MB.
SQLGate is an integrated database management and development solution that simplifies the construction and operation of databases. A solution that fits different types of databases, SQLGate is customized for seven different databases that make up 83.2% of the DBMS market.
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HSQLDB (Hyper Structured Query Language Database) is a relational database management system written in Java. It has a JDBC driver and supports a large subset of SQL-92 and SQL:2008 standards. It offers a fast, small (around 1300 kilobytes in version 2.
HBase is an open source, non-relational, distributed database modeled after Google's BigTable and is written in Java. It is developed as part of Apache Software Foundation's Apache Hadoop project and runs on top of HDFS (Hadoop Distributed Filesystem), providing...
CUBRID is a comprehensive GPL/BSD open source relational database management system highly optimized for Web Applications. CUBRID is being developed in C/C++. Includes native HA, online hot backup, and other features. JDBC, PHP, ODBC/.NET, Ruby & Python APIs.
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 warehouses and other query-intensive applications.
OrbitDB is a serverless, distributed, peer-to-peer database. OrbitDB uses IPFS as its data storage and IPFS Pubsub to automatically sync databases with peers. It's an eventually consistent database that uses CRDTs for conflict-free database merges making OrbitDB an excellent...
Datomic is a database of flexible, time-based facts, supporting queries and joins, with elastic scalability, and ACID transactions.
Clustrix is the leading scale-out SQL database engineered for the cloud. With Clustrix, you can scale transaction throughput, run real-time analytics, and simplify operations.
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.
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