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两张表一对多的连接,取多记录表中最新的一条数据
select sn, pname, srnum, rerepairtime, rn from ( select sn,pname, srnum, rerepairtime,row_number() over(partition by assetsid order by rer...
分类:其他好文   时间:2014-08-07 18:17:41    阅读次数:216
Python Theano 一键安装
Download AnacondaAnaconda is a completely free Python distribution (including for commercial use and redistribution). It includes over 195 of the most...
分类:编程语言   时间:2014-08-07 12:54:29    阅读次数:241
How to load jars residing over NFS in JBossAS7 classpath ? --reference
In this article we will discuss how can we load jars residing over NFS in JBoss AS-7 classpath. In some development environment, when there are multip...
分类:其他好文   时间:2014-08-07 12:50:10    阅读次数:323
poj 1129 -- Channel Allocation
Channel AllocationTime Limit:1000MSMemory Limit:10000KTotal Submissions:12143Accepted:6218DescriptionWhen a radio station is broadcasting over a very ...
分类:其他好文   时间:2014-08-07 12:02:00    阅读次数:236
浅谈数据库去重
关于sql去重,我简单谈一下自己的简介,如果各位有建议或有不明白的欢迎多多指出。推荐网址:www.4-yecao.com 关于sql去重最常见的有两种方式:DISTINCT和ROW_NUMBER(),当然了ROW_NUMBER()除了去重还有很多其他比较重要的功能,一会我给大家简单说说我自己在...
分类:数据库   时间:2014-08-06 17:30:01    阅读次数:232
SQL Server数据库partition by 与ROW_NUMBER()函数使用详解[转]
关于SQL的partition by 字段的一些用法心得先看例子:if object_id('TESTDB') is not null drop table TESTDBcreate table TESTDB(A varchar(8), B varchar(8))insert into TESTDB...
分类:数据库   时间:2014-08-06 14:33:11    阅读次数:346
Multicast over TCP/IP HOWTO
http://www.tldp.org/HOWTO/Multicast-HOWTO.html 1. Introduction 1.1 What is Multicast Multicast is... a need. Well, at least in some scenarios. If you ...
分类:其他好文   时间:2014-08-06 14:10:01    阅读次数:328
ListView的高效分页
需要在DataSet中设定两个sql查询1.根据参数查询指定页的数据select *from(select id,name,age,over(order by id)rownamfrom table where id>30)twhere t.rownam>@startRowIndex and t.r...
分类:其他好文   时间:2014-08-06 01:24:40    阅读次数:198
POJ 3356 AGTC (编辑距离 DP)
Description Let x and y be two strings over some finite alphabet A. We would like to transform x into y allowing only operations given below: Deletion: a letter in x is missing in y at a corr...
分类:其他好文   时间:2014-08-05 19:32:50    阅读次数:247
Parallel file system processing
A treewalk for splitting a file directory is disclosed for parallel execution of work items over a filesystem. The given work item is assigned to a wo...
分类:其他好文   时间:2014-08-05 02:57:08    阅读次数:456
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