转载原文地址http://www.cnblogs.com/pumaboyd/archive/2008/04/20/1162376.html这周碰到了很多奇怪的问题,有些是莫名的低级错误,有些这是一直以来未发现的错误。其中这个RowNumber()这个问题就是这样。敬德兄写的底层负责自动生成T-SQL...
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数据库 时间:
2014-07-24 10:14:33
阅读次数:
187
Problem A: Tower of Cubes
In this problem you are given N colorful cubes each having a distinct weight. Each face of a cube is colored with one color. Your job is to build a tower using th...
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其他好文 时间:
2014-07-23 17:07:51
阅读次数:
251
Labeling Balls
Time Limit: 1000MS
Memory Limit: 65536K
Total Submissions: 10220
Accepted: 2838
Description
Windy has N balls of distinct weights from 1 unit to N unit...
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其他好文 时间:
2014-07-23 13:40:06
阅读次数:
210
地址:https://icpcarchive.ecs.baylor.edu/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=3799
Two star-crossed lovers want to meet. The two lovers are standing at distinct points in t...
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其他好文 时间:
2014-07-23 13:29:04
阅读次数:
242
Given a stringSand a stringT, count the number of distinct subsequences ofTinS.A subsequence of a string is a new string which is formed from the orig...
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其他好文 时间:
2014-07-23 12:36:06
阅读次数:
209
题目:Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list.For example,Given 1....
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编程语言 时间:
2014-07-23 12:01:46
阅读次数:
312
ldistinct去除重复的数据(distinct是对整个结果集进行数据重复处理,不是针对某一列)l-> 检查返回不重复的数据(对于整条记录不重复才会去除)?select distinct * from 表名 l-> 针对某一列去除重复,检索数据?select distinct(需要去除的字段),其...
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其他好文 时间:
2014-07-23 11:49:16
阅读次数:
174
Sorting It All Out
Time Limit: 1000MS
Memory Limit: 10000K
Total Submissions: 26911
Accepted: 9285
Description
An ascending sorted sequence of distinct values is one ...
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其他好文 时间:
2014-07-22 22:38:36
阅读次数:
166
最近在优化hiveSQL,
下面是一段排序,分组后取每组第一行记录的SQL
INSERT OVERWRITE TABLE t_wa_funnel_distinct_temp PARTITION (pt='${SRCTIME}')
SELECT
bussiness_id,
cookie_id,
session_id,
funnel_...
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数据库 时间:
2014-07-22 17:42:31
阅读次数:
344
Distinct Subsequences
A subsequence of a given sequence is just the given sequence with some elements (possibly none) left out. Formally, given a sequence X = x1x2…xm,
another sequence Z = z1...
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其他好文 时间:
2014-07-21 15:44:16
阅读次数:
244