统一检索界面技术初探

气象信息存储检索系统是将实时气象资料和历史气象资料进行统一的组织和管理，并提供检索服务的系统。由于数据量大，不可能都放在存取速度快但价格较高的磁盘上，因此必须将数据根据其访问频率分别存储在一级磁盘、二级自动磁带库和三级脱机磁带上，并结合使用商用数据库管理系统、数据迁移软件和存档软件对分布在各级存储设备上的数据进行管理。但由于这些软件之间存在的不衔接，不能对三级存储没备上的数据进行统一管理，也带来了用户检索界面不统一的问题。针对这个问题，本文对基于商用数据库技术的磁盘磁带数据的统一检索界面技术进行了探讨和研究，提出了统一检索界面的解决方案并在一定条件下，实现部分关键技术。

Research on Technique of Uniform Retrieval Surface

The meteorological information storage retrieval system is the system which can uniformly organize and manage the real time meteorological data and the historical meteorological data, and also provides retrieval service. Due to the large amount of data and high price of disk, not all the data can be stored on the disk. Thus, according to their access frequency, the data will be retained on disk which is the first storage device, automatic tape library which is the second storage device and off line tape which is the third storage device,respectively. And the data are managed by commercial DBMS, migration software and archive software. However, the three kinds of software can't uniformly manage data distributed over three kinds of storage device, so a problem that user's retrieval surface isn't uniform is brought about. To solve this problem, the retrieval technique using uniform surface from disk or tape based on commercial DBMS is discussed and a solution is presented.