database copy造句

a backup of a database is a database copy, together with control information, ready to be restored in the event of a failure
数据库的备份是数据库的副本以及一些控制信息，在出现故障的情况下，可以随时用它进行恢复。
the paper researches data property, principle standard and step of spatial database and discusses framework management of spatial database and analyses key technology that are seamless integration of spatial database, metadata structure, spatial database copy and spatial data update adopting spatial database basic theory combination instance about establishing of beijing land source and house management information system
摘要采用空间数据库的基本理论，结合北京市国土资源与房屋管理信息系统中建库的实例，研究了空间数据建库的数据性质，空间数据建库的原则、标准和步骤；探讨了空间数据库的组织管理；分析了空间数据建库数据的无缝集成、元数据的组织、空间数据库增量备份和增量更新等关键技术。
It's difficult to find database copy in a sentence. 用database copy造句挺难的