码迷,mamicode.com
首页 >  
搜索关键字:little endian order    ( 19588个结果
利用"SQL"语句自动生成序号的两种方式
1.首先,我们来介绍第一种方式:◆查询的SQL语句如下:select row_number() over (order by name) as rowid, sysobjects.[name] from sysobjects◆运行的结果:rowid name1 all_columns2 all_ob...
分类:数据库   时间:2014-07-24 17:28:45    阅读次数:342
(转)SQL NEWID()随机函数
从A表随机取2条记录,用SELECT TOP 10 * FROM ywle order by newid()order by 一般是根据某一字段排序,newid()的返回值 是uniqueidentifier ,order by newid()随机选取记录是如何进行的newid()在扫描每条记录的时...
分类:数据库   时间:2014-07-24 17:12:35    阅读次数:345
HDU4870:Rating(DP)
Problem Description A little girl loves programming competition very much. Recently, she has found a new kind of programming competition named "TopTopTopCoder". Every user who has registered in "To...
分类:其他好文   时间:2014-07-24 10:27:14    阅读次数:301
Add Two Numbers leetcode java
题目:You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a sin....
分类:编程语言   时间:2014-07-24 10:01:23    阅读次数:223
[leetcode]Permutation Sequence
Permutation SequenceThe set[1,2,3,…,n]contains a total ofn! unique permutations.By listing and labeling all of the permutations in order,We get the fo...
分类:其他好文   时间:2014-07-23 22:11:47    阅读次数:327
诊断一句SQL不走索引的原因
from http://www.itpub.net/thread-1852897-1-1.html有论坛朋友在上面的帖子里问SQL为什么不走索引,正好这两天我也刚刚在看SQL优化,于是试着回答了一下.下面是原来的SQL:select o.order_id as orderIdfrom order_i...
分类:数据库   时间:2014-07-23 22:11:27    阅读次数:350
MySQL SQL优化
--MySQL SQL优化-------------------2014/07/23几种order by的情况 乍一看这个问题好像有点复杂,我们从最简单的case开始看起。 用这个表来说明:(10w行数据)1、 最简单的order ―― order by索引字段从explain的结果来看(Extra...
分类:数据库   时间:2014-07-23 20:49:45    阅读次数:309
[leetcode]Add Two Numbers
Add Two NumbersYou are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes co...
分类:其他好文   时间:2014-07-23 16:51:51    阅读次数:251
hdu1845 Jimmy’s Assignment --- 完备匹配
题意: 要求在一个特殊的图上找最大匹配,该图特点是:无向图,每个节点度数为3,是一个边双连通分量(the graph is 2-edge-connected (that is, at least 2 edges need to be removed in order to make the graph disconnected) 这一点是这样理解的把。。) 思路: 一般想法就直接建图求最大匹...
分类:其他好文   时间:2014-07-23 13:22:07    阅读次数:207
hdu4870 Rating (高斯消元或者dp)
Rating Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 213 Accepted Submission(s): 126 Special Judge Problem Description A little girl lov...
分类:其他好文   时间:2014-07-23 13:10:26    阅读次数:242
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!