Derby的jar说明

Derby的下载后，解压发现lib中有很多jar包，下面说明一下每个jar包的用途：

引擎库

derby.jar是引擎库，必须的 For embedded databases. You always need this library for embedded environments. For client/server environments, you only need this library on the server.

工具库

1. derbytools.jar: Required for running all the Derby tools (such as ij, dblook, and import/export).
2. derbyrun.jar: Executable jar file that can be used to start the Derby tools.

网络服务端库

如果是通过网络连接Derby（非嵌入方式），那么需要这个jar。 derbynet.jar: Required to start the Derby Network Server.

网络客户端库

derbyclient.jar: Required to use the Derby network client driver.

本地语言库

1. derbyLocale_cs.jar Required to provide translated messages for the Czech locale.
2. derbyLocale_de_DE.jar Required to provide translated messages for the German locale.
3. derbyLocale_es.jar Required to provide translated messages for the Spanish locale.
4. derbyLocale_fr.jar Required to provide translated messages for the French locale.
5. derbyLocale_hu.jar Required to provide translated messages for the Hungarian locale.
6. derbyLocale_it.jar Required to provide translated messages for the Italian locale.
7. derbyLocale_ja_JP.jar Required to provide translated messages for the Japanese locale.
8. derbyLocale_ko_KR.jar Required to provide translated messages for the Korean locale.
9. derbyLocale_pl.jar Required to provide translated messages for the Polish locale.
10. derbyLocale_pt_BR.jar Required to provide translated messages for the Brazilian Portuguese locale.
11. derbyLocale_ru.jar Required to provide translated messages for the Russian locale.
12. derbyLocale_zh_CN.jar Required to provide translated messages for the Simplified Chinese locale.
13. derbyLocale_zh_TW.jar Required to provide translated messages for the Traditional Chinese locale.

参考： https://builds.apache.org/job/Derby-docs/lastSuccessfulBuild/artifact/trunk/out/getstart/index.html