The Derby DBMS engine is lightweight.

Cloudscape DBMS引擎是轻量级的。

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Applications can embed the database Management System (DBMS) engine in the application process, eliminating the need to manage a separate database process or service.

应用程序可以将数据库管理系统(Database Management System, DBMS)引擎嵌入应用程序进程中，从而无需管理单独的数据库进程或服务。

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First, the Netezza database management system (DBMS), a highly optimized engine for the massively parallel Netezza environment, does not use indexes.

首先，Netezza数据库管理系统(DBMS)，一个面向大规模并行netezza环境的高度优化的引擎，不会使用索引。

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