在簡要說明數(shù)據(jù)復(fù)制技術(shù)定義與特點(diǎn)的基礎(chǔ)上，針對國家水利行業(yè)管理部門地理上的分布造成各個管轄區(qū)域的水利數(shù)據(jù)呈現(xiàn)出分散的現(xiàn)狀，利用Oracle10g高級復(fù)制服務(wù)器，為水利資源數(shù)據(jù)分中心數(shù)據(jù)庫數(shù)據(jù)維護(hù)管理系統(tǒng)設(shè)計(jì)了一種新的復(fù)制模型，該模型將多宿主復(fù)制模式與快照復(fù)制模式進(jìn)行了有機(jī)的結(jié)合。實(shí)驗(yàn)結(jié)果表明，新的混合復(fù)制模型避免了傳統(tǒng)數(shù)據(jù)復(fù)制單一模式的低效性，實(shí)現(xiàn)了將各個部門與總部之間以及各個部門之間的數(shù)據(jù)庫聯(lián)系起來，變成物理上分散、邏輯上統(tǒng)一的集成數(shù)據(jù)庫。

Abstract:

?Based on the brief introduction of the definition and characteristics of data replication technique， directed at the current status that the geometrically distribution of state water industry management departments results in decentralized water conservancy data， utilizing advanced replication server of Oracle 10g， a new replication model for data maintenance and management system of the branch center?蒺s database for water resources data is developed， in which multi-master replication and snapshot replication are combined organically. The results show that this new hybrid model avoids the inefficiency caused by the traditional replication model， through which databases between each department and headquarter and among them are connected to become a physically-dispersed， logically-unified integrated database.

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