//用dba匿名登录[oracle@enfo212 ~]$ sqlplus / as sysdbaSQL*Plus: Release 11.2.0.1.0 Production on Wed May 8 16:39:53 2013Copyright (c) 1982, 2009, Oracle. A...
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数据库 时间:
2014-11-11 14:11:30
阅读次数:
385
Given inorder and postorder traversal of a tree, construct the binary tree.Note:You may assume that duplicates do not exist in the tree.后序遍历的最后一个元素就是根...
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其他好文 时间:
2014-11-11 00:40:07
阅读次数:
189
1. cluster介绍大家都知道nodejs是一个单进程单线程的服务器引擎,不管有多么的强大硬件,只能利用到单个CPU进行计算。所以,有人开发了第三方的cluster,让node可以利用多核CPU实现并行。随着nodejs的发展,让nodejs上生产环境,就必须是支持多进程多核处理!在V0.6.0...
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Web程序 时间:
2014-11-10 19:37:42
阅读次数:
1935
PerconaXtraDBCluster(下文简称PXC集群)提供了MySQL高可用的一种实现方法。PXC集群以节点组成(推荐至少3节点,后面会讨论两节点的情况),每个节点都是基于常规的
MySQL/PerconaServer,意味着你可以将现有的server加入到集群中亦或从集群中分离出某节点单独使用。集群中每..
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数据库 时间:
2014-11-10 01:21:09
阅读次数:
465
buildroot - 2011.11 交叉编译器制作时,提示如下错误:
“You may have to install 'g++' on your build machine”
还提示:toolchain/dependencies/dependencies.sh 121 Error
.....
原来他没有检查出来,CXXCOMPILER_VERSION为空。方便起见,我直接输入命令:
c++ -v 2>&1 | sed -n '/^gcc version/p' | sed -e 's/^gcc vers...
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系统相关 时间:
2014-11-09 20:55:17
阅读次数:
568
Evaluate the value of an arithmetic expression inReverse Polish Notation.Valid operators are+,-,*,/. Each operand may be an integer or another express...
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其他好文 时间:
2014-11-09 20:44:22
阅读次数:
204
Given two sorted integer arrays A and B, merge B into A as one sorted array.Note:You may assume that A has enough space (size that is greater or equal...
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其他好文 时间:
2014-11-09 19:30:15
阅读次数:
143
Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below.For example, given the fol...
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其他好文 时间:
2014-11-09 13:54:18
阅读次数:
155
同样的雪花时间限制:1000ms | 内存限制:65535KB难度:4描写叙述You may have heard that no two snowflakes are alike. Your task is to write a program to determine whether this ...
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其他好文 时间:
2014-11-08 20:48:27
阅读次数:
139
We propose an approach based on the idea that cluster centers are characterizedby a higher density than their neighbors and by a relatively large dist...
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其他好文 时间:
2014-11-08 18:16:04
阅读次数:
436