BLOB数据优化算法及其应用  

BLOB Data Optimization Algorithm and Its Application

作　　者：张翼[1] 

机构地区：[1]云南机电职业技术学院,云南昆明650203

出　　处：《计算机测量与控制》2011年第6期1478-1480,1497,共4页Computer Measurement &Control

摘　　要：为了提高WEB信息系统中存取非结构二进制数据文件存取效率,对基于关系数据库的BLOB数据存取技术及算法优化进行了研究;综合运用了ADO.NET 3.5数据访问接口和内存缓冲区机制,阐述了BLOB存取的原理和算法,并提出了BLOB存储的优化算法;通过建立不同的存储模型,比较了数据存取效率,两种存取方案中,采用对BLOB分块传输和分块存储的改进算法明显改善了存取效率;算法测试和实际应用的结果表明,BLOB数据优化算法具有更高的存取效率和可靠性,已经成功应用于某高校多媒体教学平台中。In order to improve the storage unstructured binary data file efficiency in the web information system, this paper studied BOLB data access technology and optimization algorithm based on RDBMS. This article comprehensively using ADO. NET 3. 5 data access inter- {ace and memory buffer mechanism, expounded the BLOB access principle and algorithm, put forward BLOB access optimization algorithm. Through the establishment of different storage model, compared the data access efficiency. Two access strategies, the use of block transfers of BLOB and block storage of the modified algorithm significantly improves the access efficiency. Algorithm testing and practical application showed that, BLOB data access optimization algorithm has higher efficiency and reliability. The new algorithm has been sue-- cessfully applied in a university multimedia teaching platform.

关 键 词：BLOB存储技术 存储效率 存储优化 ADO.NET 3.5 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]