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一种基于数据访问流的数据库索引优化方法该方法通过集成业务流程模型与数据模型,抽取了流程活动中包含的数据访问操作和流程的控制结构形成数据访问流,分析了数据访问流中...
一种基于数据访问流的数据库索引优化方法该方法通过集成业务流程模型与数据模型,抽取了流程活动中包含的数据访问操作和流程的控制结构形成数据访问流,分析了数据访问流中数据访问操作的频度,为频繁数据访问操作所对应的数据项创建索引,达到改善数据访问性能的目的。实验结果表明,该方法提高了数据查询的速度。-A novel method called data-access-flow based index optimization (DAFIO) is proposed to provide automatic index select for databasein order to improve the data access performance. By integrating the data model and process model of the IT systems and getting data access flow, theDAFIO method can analyze the data access flow to find those data item which are accessed frequently, and then create indexes for these frequentitems. The experiment results show that the novel method is effective to improve the data access performance.
- 2023-04-15 10:50:04下载
- 积分:1
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微软msde,数据库引擎得简单查许分析器
微软msde,数据库引擎得简单查许分析器-Microsoft MSDE database engines were simple check Xu Analyzer
- 2023-07-26 04:40:03下载
- 积分:1
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根据贪心算法,来求解最小生成树;
这种情况,可能求不不全局最优解,但是,可以求出当前情况下的最优解;...
根据贪心算法,来求解最小生成树;
这种情况,可能求不不全局最优解,但是,可以求出当前情况下的最优解;-According to greedy algorithm to solve the minimum spanning tree this situation, it may not seek the global optimal solution is not, however, you can find the optimal solution under the current situation
- 2023-05-29 18:05:03下载
- 积分:1
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64位以内Rabin
64位以内Rabin-Miller 强伪素数测试和Pollard rho 因数分解算法的实现-64 within Rabin-Miller-puppet prime testing and Pollard rho factorization algorithm implementation
- 2023-01-06 03:00:03下载
- 积分:1
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前一阵出去玩了,补回还差的2个,里面包括上次上载的一共5个,另加个汇编程序,是课堂实验...
前一阵出去玩了,补回还差的2个,里面包括上次上载的一共5个,另加个汇编程序,是课堂实验-play out a little while ago, to compensate for the worse two, including the inside on the last of a total of five, plus a 000 assembler, a classroom experiment
- 2022-05-25 17:12:49下载
- 积分:1
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C++ class instance of the database code three times, layer upon layer additive
C++数据库课堂实例
三次代码,层层递加-C++ class instance of the database code three times, layer upon layer additive
- 2023-04-05 23:20:03下载
- 积分:1
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动态连接ODBC数据库.使用通过数据源的名称动态链接访问ODBC数据库,如果程序中使用的数据库程序运行时是不确定的,数据库表中的域和记录可能被改变,那么通过指向...
动态连接ODBC数据库.使用通过数据源的名称动态链接访问ODBC数据库,如果程序中使用的数据库程序运行时是不确定的,数据库表中的域和记录可能被改变,那么通过指向数据库的数据源动态的对该数据库进行操作是比较好的方法.-Dynamic Link ODBC database. Data sources through the use of the name of Dynamic Link visit ODBC databases, If the procedure is used in the database program running is uncertain, database table fields and the record is likely to be altered, So, through the database at the data source dynamic database operation that is a better one.
- 2022-03-12 07:15:11下载
- 积分:1
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" Database system implementation," the first four chapters, the databas...
《数据库系统实现》前四章,数据库实现的经典书,介绍了很多原理性的东西。-" Database system implementation," the first four chapters, the database to achieve a classic book describes the principles of a lot of things.
- 2022-01-21 06:16:59下载
- 积分:1
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数据库管理系统
这是一个数据库管理系统项目使用 java 服务器 page(JSP) 语言是非常有利于谁搜索数据库管理系统项目。
- 2023-07-31 20:00:04下载
- 积分:1
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Maze with the Games, has a wealth of examples and test data, data structure to l...
迷宫问题与运动会,有丰富的实例与测试数据,是学习数据结构的较好的资料!-Maze with the Games, has a wealth of examples and test data, data structure to learn the information better!
- 2022-10-01 08:00:03下载
- 积分:1