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当前国际上有两种形式的数据库,一种是集中式数据库;另一种是分布式数据库。鉴于我国历史水文资料年限长、册数多(近2000册水文年鉴)的具体情况,1984年水电部水调中心设想建立分布式水文数据库,即在各流域机构(或省)所在地建立通用数据库,有关部门建立专用数据库,然后通过通讯线路,逐步连接成全国性计算机网络,进行远程查询检索,信息交换,形成一个
Currently, there are two kinds of databases in the world, one is a centralized database and the other is a distributed database. In view of the specific conditions of the historical hydrological data in our country, with a large number of books (nearly 2000 volumes of annual hydrographic almanacs), the Hydroelectric Department of the Ministry of Water Resources in 1984 envisaged the establishment of a distributed hydrological database, that is, a common database was established in the locations of various river basin agencies (or provinces) Relevant departments to establish a dedicated database, and then through the communication lines, and gradually into a national computer network for remote query retrieval, information exchange, the formation of a