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HDU4109 Instrction Arrangement 拓扑排序 关键路径
Problem Description Ali has taken the Computer Organization and Architecture course this term. He learned that there may be dependence between instructions, like WAR (write after read), WAW, RAW. If...
分类:编程语言   时间:2014-12-07 17:52:29    阅读次数:262
数据库视图,触发器和事务
--select 查询出来的结果集可以通过as 起别名当做虚拟表来用 select*from (select*from score ,grade where score.degree between low and upp)as jibietable where rank='A' --创建视图(视图...
分类:数据库   时间:2014-12-07 14:57:57    阅读次数:230
【转】一道SQL SERVER DateTime的试题
学习过上一篇SQL SERVER DateTime精度的文章后。再来做一道题。IF ('2011-07-31 00:00:00.000' BETWEEN '2011-07-01' and '2011-07-31 ')PRINT 'Yes'ELSEPRINT 'No'结果是什么,如果你认为是Yes,那...
分类:数据库   时间:2014-12-07 12:33:22    阅读次数:179
Interaction between objects
http://stackoverflow.com/questions/3744345/object-oriented-style-programming-for-interaction-between-objects?rq=1One thing I've noticed is that people...
分类:其他好文   时间:2014-12-06 18:07:10    阅读次数:177
Oracle中的一些查询语句及其执行顺序
查询条件: 1)LIKE:模糊查询,需要借助两个通配符,%:表示0到多个字符;_:标识单个字符。 2)IN(list):用来取出符合列表范围中的数据。 3)NOT IN(list): 取出不符合此列表中的数据记录。 4)BETWEEN…AND…:用来查询符合某个值域范围条件的数据,最常见的是使用在数字类型的数据范围上,但对字符类型和日期类型数据也同样适用。for examp...
分类:数据库   时间:2014-12-06 10:10:51    阅读次数:192
DBI接口和DPI接口的区别
1)DBI接口 A,也就是通常所讲的MCU借口,俗称80 system接口。The lcd interface between host processor and LCM device list as below,The LCM driver will repeated update panel ...
分类:数据库   时间:2014-12-05 10:37:58    阅读次数:374
2014-12-04 视图、触发器
视图:把一个查询结果集当作表例:select * from (select * from score,grade where score.degree between low and upp) as jieguotable where rank='A' as 后面的作为一个虚拟的表create vi...
分类:其他好文   时间:2014-12-04 19:49:20    阅读次数:152
C# - The differences between SendKeys.Send and SendKeys.SendWait
SendKeys.Send: Sends keystrokes to the active application. That's all. SendKeys.SendWait: Sends the given keys to the active application, and then waits for the messages to be processed. So, use S...
分类:Windows程序   时间:2014-12-04 10:15:42    阅读次数:369
POJ 2485 Highways (kruskal 最小生成树)
HighwaysPOJ 2485so that it will be possible to drive between any pair of towns without leaving the highway system. Flatopian towns are numbered from 1...
分类:其他好文   时间:2014-12-03 14:09:22    阅读次数:185
An Easy Problem
描述     In this problem, you are given two integers L and R, and your task is to calculate the sum of all the number's square between L and R(inclusive). 输入The first line contains an integer ...
分类:其他好文   时间:2014-12-02 11:55:51    阅读次数:181
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