基于快照日志的ORACLE数据表DELTA抽取算法
首发时间:2008-01-17
摘要:本文提出了一种对ORACLE数据表进行Delta抽取的算法.该算法是基于ORACLE数据库的快照日志结合XML文件而设计。它不仅能够减少数据仓库进行增量抽取时网络中数据的传输量,而且解决了ORACLE数据表增量抽取的跨平台性。
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A Delta Extraction Algorithm From Oracle Data Tables Based on Snapshot View Log
Abstract:The paper presents an DELTA incremental extraction algorithm on ORACLE tables.The algorithm is designed based on the combination of ORACLE snapshot view log and XML documents.Not only does it reduce the network transmission data ,but also solve the problems of cross_platforms when Data Warehouse is extracting data from the ORACLE data sources.
Keywords: Delta ORACLE incremental extraction snapshot view logs
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No.1814218743012005****
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