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hive 中与mysql 中函数同名不同意的方法记录
max 函数 在hive中max函数是一个聚合函数,所以,而且返回值是double ,而且后面必须跟group by ,这个和mysql差异很大 Built-in Aggregate Functions (UDAF) DOUBLEmax(col)Returns the maximum value o ...
分类:数据库   时间:2017-08-05 21:12:17    阅读次数:193
414. Third Maximum Number 第三大的数字
Given a non-empty array of integers, return the third maximum number in this array. If it does not exist, return the maximum number. The time complexi... ...
分类:其他好文   时间:2017-08-05 20:31:36    阅读次数:134
1007. Maximum Subsequence Sum (25)
Given a sequence of K integers { N1, N2, ..., NK }. A continuous subsequence is defined to be { Ni, Ni+1, ..., Nj } where 1 <= i <= j <= K. The Maximu ...
分类:其他好文   时间:2017-08-05 19:02:16    阅读次数:146
More than the maximum number of request parameters
前些时间,我们的的一个管理系统出现了点问题,原本运行的好好的功能,业务方突然讲不行了,那个应用已经运行了好多年了,并且对应的代码最近谁也没改动过,好奇怪的问题,为了解决此问题,我们查看了日志,发现请求的参数压根没有传到后台控制器之中,奇怪了!明明前端传递了好多参数过来了呀!线上系统比较重要,又需要马 ...
分类:其他好文   时间:2017-08-05 17:53:53    阅读次数:128
1003. Emergency (25)
As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by some ro ...
分类:其他好文   时间:2017-08-05 16:49:26    阅读次数:214
[Array]122. Best Time to Buy and Sell Stock II(obscure)
Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may comple ...
分类:其他好文   时间:2017-08-05 11:48:10    阅读次数:147
C——Network Saboteur (POJ2531)
题目: A university network is composed of N computers. System administrators gathered information on the traffic between nodes, and carefully divided th ...
分类:Web程序   时间:2017-08-04 22:44:55    阅读次数:261
Educational Codeforces Round 26 D. Round Subset 动态规划
D. Round Subset Let's call the roundness of the number the number of zeros to which it ends. You have an array of n numbers. You need to choose a subs ...
分类:其他好文   时间:2017-08-04 21:39:31    阅读次数:241
poj3178 Roping the Field (计算几何 + dp)
Roping the Field Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 858 Accepted: 250 Description Farmer John is quite the nature artist: he o ...
分类:其他好文   时间:2017-08-04 21:35:51    阅读次数:252
C# 在RichTextBox中滚动鼠标时滚动的是父窗口的滚动条
1. RichTextBox u2 = new RichTextBox(); 2. 先记住日RichTextBox没有显示滚动条时的总宽度和显示宽度 u2.Width - u2.ClientSize.Width。 3. 当显示垂直滚动条时,显示宽度会变化。 当RichTextBox没有显示垂直滚动条 ...
分类:Windows程序   时间:2017-08-03 14:57:15    阅读次数:258
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