该结果集对象是一个复杂对象，它通常位于数据库管理系统的存储器中，并且只能通过与之交互的函数辨认。
A result set object is a complicated beast, as it usually resides within the memory of the database management system and can only be deciphered by functions that interact with it.
许多因素都可以影响数据库服务器的性能，例如硬件系统的设计、数据库对象的设计、数据存储器的管理、应用程序的设计等等。
Many factors can affect the performance of a database server, such as hardware system design, database object design, data storage management, application design, and so forth.
因此，VFS 层使 Linux 用户可以添加新的文件系统支持而不必过于担心 Linux 管理存储器的方式。
Thus, the VFS layer makes it possible for Linux users to add new file system support without worrying too much about the way in which Linux manages memory.
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