In order to shield the heterogeneous which the integration system has to face , many methods have been brought forward , such as database gateway , odbcetc 許多方法被提出,如數(shù)據(jù)庫網(wǎng)關(guān)、 odbc等,以期解決信息共享所面臨的異構(gòu)性等問題。
The database gateway as operation data accessing layer offers the entirely lucid data integration among different database management system in the whole enterprise , and implements the lucid accessing between database and database saving place of different sql language and different manufacturer , and strengthens the operation rule of the whole bureau 業(yè)務(wù)數(shù)據(jù)訪問層(數(shù)據(jù)庫網(wǎng)關(guān))為整個企業(yè)范圍內(nèi)的各種數(shù)據(jù)庫管理系統(tǒng)之間提供完全透明的數(shù)據(jù)集成,實現(xiàn)數(shù)據(jù)透明訪問。提供智能分布優(yōu)化器,利用統(tǒng)計數(shù)據(jù)產(chǎn)生最優(yōu)的分布訪問方案。