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贵州大学研究生数据库实验报告
说明: 每组不超过4人,每人从TPC-H中选择至少三个查询进行执行,并进行性能调整。同组人员所选择的查询不能相同。各查询均必须包含:两个以上的表连接操作,其包含至少一个聚集函数。
每位同学的该作业均放在一个命名如“姓名-学号-专业-作业1”的目录中
用尽能想到的所有技术方法,使得选定的查询的某些性能指标尽可能的差
用尽能想到的所有技术方法,使得选定的查询的某些性能指标尽可能的好(Each group has no more than 4 people. Each person selects at least three queries from TPC-H to perform and performs performance adjustment. The queries selected by the same group can not be the same. Each query must contain more than two table join operations, which contain at least one aggregation function.
Each student's homework is placed in a directory named "name student number professional operation 1".
Using all the technical methods that can be thought of, make certain performance indicators of selected queries as poor as possible.
Use all the technical methods that you can think of, and make certain performance indicators of selected queries as good as possible.)
- 2018-07-07 22:23:26下载
- 积分:1
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jingang.net
网站内容管理系统(Web content management system)
- 2004-12-22 10:59:01下载
- 积分:1
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labsql
连接labview与数据库的桥梁,labsql免费工具包(LabVIEW and the database to connect the bridge, labsql free toolkit)
- 2008-08-14 16:40:42下载
- 积分:1
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1
说明: 《数据仓库原理、设计与应用》电子教案。适合初学者使用。(" Data warehouse theory, design and application of" electronic teaching plan. Suitable for beginners.)
- 2010-03-18 15:21:37下载
- 积分:1
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yout.comdc
0) 界面靓丽时尚,并可切换皮肤
1) 高速分类汇总,结果可导入Excel.
2) 采用MS-sql为后台数据库
3) 可无限客户端同时录入(0) interface beautiful fashion, and to switch the skin 1) high-speed classification summary, the results can be imported to Excel. 2) MS-sql database for the background 3) At the same time, unlimited client entry)
- 2009-07-15 15:38:04下载
- 积分:1
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SchoolManage02
学生宿舍管理系统,使用QT 和MYSQL 数据库编写(Student dormitory management system)
- 2020-07-01 21:40:01下载
- 积分:1
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minhang
visual studio 2008 与 sql server 2005 包含数据库文件,设计文档从别的地方下载的进行了修改。(visual studio 2008 and sql server 2005 database files containing the design documents for download from other places were modified.)
- 2010-06-24 18:02:15下载
- 积分:1
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kaoshixitong
一个四、六级考试成绩查询系统,该系统的用户由一般用户和管理员组成,然后不同的用户拥有不同的权限,各自完成各自的管理功能。首先是欢迎界面,然后选择登录,登录的时候首先要判断用户的身份,合法的用户然后进入到系统主界面中,不同的用户看到不同的系统功能。用sql server2000创建后台数据库,然后利用程序设计语言(VB)编写程序实现对数据库的操作。(A CET score query system, users of the system composed by the general user and administrator, and different users have different permissions, each of their respective management functions. First is the Welcome screen, then select the log, log to determine when the first user' s identity, legitimate user and then enter the main interface to the system, different users see different system functions. Background database created with sql server2000, and then use programming languages (VB) programming to achieve operation of the database.)
- 2010-05-13 14:33:06下载
- 积分:1
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Example109
vc 用DAO在程序中动态创建数据库的程序源码,很不错的demo(vc dynamic in the program using DAO to create a database of program source code, very good demo)
- 2011-06-23 22:15:54下载
- 积分:1
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银行排队系统
银行排队系统柜台叫号端,可以通过语音播报发送通知(The calling side bank queuing system counter)
- 2017-06-05 10:30:01下载
- 积分:1