数据库
数据库就是一组经过计算机整理后的数据，存储在一个或多个文件中，而管理这个数据库的软件就称之为数据库管理系统。一般一个数据库系统（Database System）可分为数据库（Database）与数据管理系统（Database Management System，DBMS）两个部分
HSQLDB(Java)
HSQLDB is the leading SQL relational database engine written in Java. It has a JDBC driver and supports a rich subset of ANSI-92 SQL (BNF tree format) plus SQL 99 and 2003 enhancements. It offers a sm...
Apache Derby(Java)
Apache Derby, an Apache DB subproject, is a relational database implemented entirely in Java and available under the Apache License, Version 2.0. Some key advantages include: Derby has a small...
Firebird(c/c++)
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 po...
PostgreSQL
The PostgreSQL Global Development Group is proud to announce the release of PostgreSQL 8.2, the world's most advanced open source database.
Oracle
甲骨文公司（Oracle）是世界上最大的企业软件公司， 向遍及145多个国家的用户提供数据库、工具和应用软件以及相关的咨询、培训和支持服务。
SQL Server
SQL Server是一个关系数据库管理系统，是Microsoft推出新一代数据管理与分析软件。