体验纯Java数据库Derby
Apache Derby是一个开源的、100% Java编写的、与平台无关的、易管理的关系数据库管理系统。Derby为用户提供了轻量的标准数据库引
Apache Derby是一个开源的、100% Java编写的、与平台无关的、易管理的关系数据库管理系统。Derby为用户提供了轻量的标准数据库引擎，，它可以紧密的嵌入到任何基于Java的解决方案中。Derby确保数据完整性，并提供负责的事务处理操作。默认的配置中不包含任何独立的数据库服务器。同时，Derby 的安装过程非常简单，只需要将其 .jar 文件复制到系统中并为您的项目添加该 .jar 文件即可。
Derby拥有一个令人惊奇的特性列表。它可以支持关系数据库中的所有企业级的特性，包括崩溃恢复、事务回滚和提交、行/表级锁、视图、主键/外键约束、触发器、子查询表达式，等等。一部分的列表特性使Derby从其他的Java 关系数据库管理系统中分离出来。
Derby可以有两种部署方式：
嵌入式：Derby被单个用户的Java应用程序使用，在这种模式下，Derby和应用程序运行在同一个JVM中。Derby对于终端用户几乎是透明的，因为它的启动和终止都是由应用程序来控制，而不需要任何的管理。
服务器模式：Derby由应用程序启动，此时通过用户可以通过网络连接。在这种模式下，Derby运行在服务器主机的JVM中。其他JVM的应用程序通过连接服务器来访问数据库。
在MyEclipse里默认已经集成了Derby数据库，启动Derby只需点击MyEclipse Derby的Start即可，如下图所示：
切换到Database视图，右键选择“new”，配置数据库连接，如下图所示：
其中Driver name自定义，test是当前要新建的数据库名称，Username和Password随便填，而Jar包在MyEclipse6.5安装目录
\myeclipse\eclipse\plugins\com.genuitec.eclipse.derby_6.5.0.zmyeclipse650200806\lib下;
配置好后右键选择“Open Connection”进行连接，连接上后右键“connected to MyEclipse Derby”，选择“New Sql Editor”，然后就可以使用SQL命令进行建表操作了。
Derby工程源码下载 (derby.jar等jar文件请另外下载拷贝至工程的lib目录)
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免费下载地址在
用户名与密码都是
具体下载目录在 /pub/2009/05/体验纯Java数据库——Derby/
下载方法见
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Hadoop集群、hive、Derby安装部署详细说明
体验纯Java数据库——Derby
[推荐]专家讲价优化Derby数据库技巧
配置Hive使用嵌入式Derby或客服模式Derby方法
使用Derby数据库首次连接时的ERROR 42Y07问题
Derby 的详细介绍：请点这里
Derby 的下载地址：请点这里
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