文中论述了山西省地震局前兆数据库系统的组成、数据库建立的原则和具体过程及数据的入库等。
System structure, principle and concrete process in construction of the Precursor Database System of Earthquake Administration of Shanxi Province as well as storage of data are introduced.
他们习惯于按照组成主流源和数据库系统静态数据类型化的最初设想来思考所有的语义。
They are accustomed to thinking of all semantics in terms of the primitive axioms that make up the static data typing of mainstream languages and database systems.
大多数情况下，数据库系统本身将提供一种或多种备份与恢复机制，作为产品的组成部分。
In most cases, the database system itself will provide one or more backup and restore mechanisms as part of the product.
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