The SQL-92 standard
SQL Server 【商业数据库】
The MySQL database has become the world's most popular open source database because of its high performance, high reliability and ease of use.
SEE ALSO: Study_Database_MySQL_Branch
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.
Postgres Plus Enterprise Edition is the best database and tools package in the PostgreSQL ecosystem for enterprise database compatibility, performance, scalability, high availability, monitoring, management, disaster recovery and application development.
SQLite is a software library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine. SQLite is the most widely deployed SQL database engine in the world.
Berkeley DB (BDB) is a software library that provides a high-performance embedded database for key/value data.
H2 is a relational database management system written in Java. It can be embedded in Java applications or run in the client-server mode.
HSQLDB - 100% Java Database
Apache Derby, an Apache DB subproject, is an open source relational database implemented entirely in Java and available under the Apache License, Version 2.0.
Firebird is a relational database offering many ANSI SQL standard features that runs on Linux, Windows, and a variety of Unix platforms. Firebird offers excellent concurrency, high performance, and powerful language support for stored procedures and triggers. It has been used in production systems, under a variety of names, since 1981.
Neo4j is a high-performance, NOSQL graph database with all the features of a mature and robust database.
An open-source graph database.
OpenTSDB is a distributed, scalable Time Series Database (TSDB) written on top of HBase.