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Fatal error: Call to a member function getData() on a non-object in /data/php/framework/exts/zii/wid
使用Yii框架的zii.widgets.CListView遇到的错误:zii.widgets.CListView widget('zii.widgets.CListView', array( 'dataProvider' => $order, 'itemView' => '_providerlist', 'emptyText...
分类:Web程序   时间:2014-08-31 20:08:51    阅读次数:242
【leetcode】Remove Element
题目: Given an array and a value, remove all instances of that value in place and return the new length. The order of elements can be changed. It doesn't matter what you leave beyond the n...
分类:其他好文   时间:2014-08-31 17:20:11    阅读次数:271
Leetcode 细节实现题 Spiral Matrix
Spiral Matrix  Total Accepted: 12721 Total Submissions: 62094My Submissions Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. For ex...
分类:其他好文   时间:2014-08-31 17:19:01    阅读次数:210
Leetcode 细节实现题 Spiral Matrix II
Spiral Matrix II  Total Accepted: 12773 Total Submissions: 41526My Submissions Given an integer n, generate a square matrix filled with elements from 1 to n2 in spiral order. For exampl...
分类:其他好文   时间:2014-08-31 17:17:11    阅读次数:128
ROW_NUMBER() OVER函数的基本用法用法
简单的说row_number()从1开始,为每一条分组记录返回一个数字,这里的ROW_NUMBER() OVER (ORDER BY xlh DESC) 是先把xlh列降序,再为降序以后的没条xlh记录返回一个序号。
分类:其他好文   时间:2014-08-31 15:42:41    阅读次数:294
Valid Parentheses
Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. The brackets must close in the correct order, "()" and "()[]{}" are all va...
分类:其他好文   时间:2014-08-31 09:18:11    阅读次数:203
WebRTC in the real world: STUN, TURN and signaling
What is signaling? Signaling is the process of coordinating communication. In order for a WebRTC application to set up a 'call', its clients need to exchange information: Session control message...
分类:Web程序   时间:2014-08-31 00:31:25    阅读次数:1000
mysql在update时,从其他select结果集更新表
需要使用join,例如select g.id,g.res_count,count(gr.r_id) cnt from mb_game_res gr left join mb_game g on gr.g_id = g.id group by gr.g_id order by cnt descupda...
分类:数据库   时间:2014-08-30 18:56:19    阅读次数:243
Leetcode--Permutation Sequence
Problem Description: The set [1,2,3,…,n] contains a total of n! unique permutations. By listing and labeling all of the permutations in order, We get the following sequence (ie, for n = 3):...
分类:其他好文   时间:2014-08-30 17:49:39    阅读次数:171
oracle数据库中文汉字排序
oracle数据库中文汉字排序今天需要按oracle数据库中某个表的某个中文字段进行排序,本来感觉挺简单的一个东西,不就是一个order by嘛,可是写完了发现拍的并不对,一时间感到不可思议,又查询,发现果然有这个问题,经过查资料发现,Oracle对中文的排序是按照ASC码的值进行排序的,后来又经过...
分类:数据库   时间:2014-08-30 17:44:19    阅读次数:265
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