例句與造句

1. a backup of a database is a database copy, together with control information, ready to be restored in the event of a failure
   數(shù)據(jù)庫(kù)的備份是數(shù)據(jù)庫(kù)的副本以及一些控制信息，在出現(xiàn)故障的情況下，可以隨時(shí)用它進(jìn)行恢復(fù)。
2. 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
   摘要采用空間數(shù)據(jù)庫(kù)的基本理論，結(jié)合北京市國(guó)土資源與房屋管理信息系統(tǒng)中建庫(kù)的實(shí)例，研究了空間數(shù)據(jù)建庫(kù)的數(shù)據(jù)性質(zhì)，空間數(shù)據(jù)建庫(kù)的原則、標(biāo)準(zhǔn)和步驟；探討了空間數(shù)據(jù)庫(kù)的組織管理；分析了空間數(shù)據(jù)建庫(kù)數(shù)據(jù)的無(wú)縫集成、元數(shù)據(jù)的組織、空間數(shù)據(jù)庫(kù)增量備份和增量更新等關(guān)鍵技術(shù)。
3. It's difficult to find database copy in a sentence. 用database copy造句挺難的