This secondary object is created on an as-needed basis, thus reducing the memory footprint for the most common scenarios.
这个二级对象会在程序需要的时候才创建，这样就会降低大多数一般情况下的内存占用。
HANA employs an in-memory, data source agnostic computing engine, where data to be processed is held in RAM instead of reading from secondary storage devices thus providing a performance boost.
HANA应用了常驻内存、数据源无关的计算引擎，要处理的数据存放在RAM中，而不是从二级存储设备中获取，这样提供了性能的提升。
This, of course, highlights a secondary problem: even without the server, X apps can chew up a lot of memory.
当然，这就凸显出第二个问题：即使没有服务器，X应用程序也会消耗不少内存。
When using many data document, advocate data file is used at storage system object and watch, secondary data file is used at memory user data and index.
采用多个数据文件时，主数据文件用于存储系统对象和表，次要数据文件用于存储用户数据和索引。
When using many data document, advocate data file is used at storage system object and watch, secondary data file is used at memory user data and index.
采用多个数据文件时，主数据文件用于存储系统对象和表，次要数据文件用于存储用户数据和索引。
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