实际上，使用的是数据库的嵌入式版本。

In fact, you are using an embedded version of the database.

youdao

您可以免费下载其共享版，或者您也可以购买标准许可版、专业版和嵌入式版本。

A community edition is available for download at no cost, or you can buy licensed standard, professional, and embedded editions.

youdao

derby(用于连接到Apache derby数据库的嵌入式版本的驱动程序)。

Derby (Drivers for connecting to embedded version of the Apache Derby database).

youdao