THE RESEARCH OF DISTRIBUTED DATABASE'S LOCK AND REFRESH MECHANISM IN ENGINEERING COST
XU Xue-dong1,WEI Guang-cun2,WEN Feng-rong3,JIANG Yan-bing4(1.College of Civil Engineering,Shandong Agricultural University,Taian 271018,China;2.Department of Information Engineering,Shandong University of Science and Technology,Taian 271019,China;3.College of Economics and management,Shandong Agricultural University,Taian 271018,China;4.Department of Computer,Beijing University,Beijing 100871,China)
In this paper, according to the actual circumstance of the engineering cost realm, the principle and mechanism of distributed database's lock component is discussed combining the characteristics of the small and medium building enterprise especially ,and using database theories and techniques and technique of component,It was also applied to the development of “Cost Engineer 2004 network versions”.The satisfied result was obtained.It can be applied in the every module of system, which have some characteristics as follows, reuseing, safety credibility,simple,easy,and etc. It pushed forward the progress of automation, numeral turn in the engineering cost realm.
【CateGory Index】： F407.9