A Real Time Data Renew Method Based On Timed Tasks And Incremental Updating Technology

As Internet increasing, the information of Internet becomes large and huge. Because of it, the exchanging data basing memory appears. The method of updating data bases the SPRING frame, adding distributed theory.Firstly, our team and I analyze the software of TIMESTEN and EXTREME DB, which are commercial software, and study existing technique and theory.Secondly, we find some mistakes of TIMESTEN, while we use it. And also we find some unique ways to resolve these mistakes.Thirdly, we study the foreign methods of updating data and we give two ways to resolving our actual problem:design policy of WEB and embedded policy. We give two ways:incremental update and whole update of timing task and three ways to protect unabridged data:timing writing to fixed disk, allowing to back-up, and periodic whole updating. Above all, we finish saving data of fixed disk to memory. The two ways utilize the theory of Linux greedy using memory; the two ways advance the value of saving data into memory. They save a whole of data, which can absolutely provide service for others.Fourthly, we apply for PROXOOL data pool and IBATICS to connect to ORACLE database. Above all, the all programmers become more dexterity and externally.Finally, we conclude all information. We predict the fields extended in the future. And this method probably apply for the new fields as Internet become more and more public, such as data exchanging between website,3G mobile, and WAP net. We provide some our ideas and methods.