摘要
"信息孤岛"在高校校园信息化建设过程中普遍存在,在Oracle数据库的应用系统中,通过使用数据库自带的LogMiner程序来解析数据库中Redo日志文件,然后对解析出的SQL语句利用Flex技术进行相应的词法重构;设计出一种基于Flex技术的日志解析远程云同步方案,以实现数据共享.它不仅可以实现数据库中记录级数据同步、表一级数据同步、异构表间的实时数据同步,而且同步效率极高,非常适用于跨校区的远程数据同步.
＂Information Isolated island＂ exists in the process of campus informationization construction in Colleges and universities, in Oracle database application systems, the database using the built-in through LogMiner program to analytical database redo log files,and then to parse SQL statements using Flex technology corresponding lexical reconstruction. We design a based on Flex tech- nology of log resolution remote cloud synchronization scheme, in order to achieve data sharing. Not only can the technology realize da- tabase record level data synchronization, data synchronization, and the heterogeneous table between the real-time data synchroniza- tion,but also its synchronization efficiency is very high,rendering it very suitable for cross-campus remote data synchronization.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
2015年第4期556-561,共6页
Journal of Xiamen University：Natural Science
关键词
数字校园
信息孤岛
云同步
Redo日志
词法解析器
digital campus
information isolated island
cloud synchronization
Redo log
lexical parser
作者简介
通信作者：cyliu@xmu．edu．cn
