在簡要說明數據復制技術定義與特點的基礎上，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)域的水利數據呈現出分散的現狀，利用Oracle10g高級復制服務器，為水利資源數據分中心數據庫數據維護管理系統(tǒng)設計了一種新的復制模型，該模型將多宿主復制模式與快照復制模式進行了有機的結合。實驗結果表明，新的混合復制模型避免了傳統(tǒng)數據復制單一模式的低效性，實現了將各個部門與總部之間以及各個部門之間的數據庫聯(lián)系起來，變成物理上分散、邏輯上統(tǒng)一的集成數據庫。

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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