Data storage and management, and the external user how to access data are all depend on the functions provided by database, so spatial database functions is the key part of the spatial database.
空间数据库功能是数据库的关键部分，数据库内部的数据存储与管理，外部用户如何使用这些数据，都是靠功能来实现的。
A method and apparatus for downloading data associated with the recording medium from an external part, and reproducing the downloaded data is disclosed.
揭示了一种从外部下载与记录介质有关的数据并再现所下载的数据的方法和装置。
A method and apparatus for downloading data associated with the recording medium from an external part, and reproducing the downloaded data is disclosed.
揭示了一种从外部下载与记录介质有关的数据并再现所下载的数据的方法和装置。
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