随着包含重要信息系统的生产数据库的快速增长，自动化空间管理变得越来越重要。
As productive databases containing important information systems rapidly grow larger and larger, automated space management becomes more and more important.
初始化为镜像的分割镜像可以用作系统级备份，从而使管理员可以执行快速的文件系统级数据库恢复。
A split mirror initialized as mirror can be used as a system level backup, allowing the administrator to perform a quick file system level recovery of the database.
随着数据流应用系统的快速流行，流数据管理对数据库技术提出了巨大挑战。
With the rapid popular of data stream application systems, management of data streams is a huge challenge on database technology.
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