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Oracle中Error while performing database login with the XXXdriver; Listener refused the connection with the following error; ORA-12505,TNS:listener does not currently know of SID given inconnect descrip
欢迎关注大数据和人工智能技术文章发布的微信公众号:清研学堂,在这里你可以学到夜白(作者笔名)精心整理的笔记,让我们每天进步一点点,让优秀成为一种习惯! 一次连接数据库怎么也连接不上,查了多方面资料,终于找到答案,总结 首先应该保证数据库的服务启动 在myeclipse的数据库视图中点 右键->new ...
分类:数据库   时间:2018-03-16 00:18:41    阅读次数:220
Python33 paramiko模块
paramiko模块ssh登录需要打开cmd,通过pipinstallparamiko命令来安装paramiko模块。importparamiko#创建SSH对象ssh=paramiko.SSHClient()#允许连接不在know_hosts文件中的主机#ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())#连接服务器ssh.conn
分类:编程语言   时间:2018-03-15 22:11:59    阅读次数:233
C - Trailing Zeroes (III)(二分)
You task is to find minimal natural number N, so that N! contains exactly Q zeroes on the trail in decimal notation. As you know N! = 1*2*...*N. For e ...
分类:其他好文   时间:2018-03-14 22:05:11    阅读次数:152
dhcp 过程
The Question SuperUser reader Sagnik Sarkar wants to know what the difference between 127.0.0.1 and 0.0.0.0 is: I understand that 127.0.0.1 points to  ...
分类:其他好文   时间:2018-03-14 16:55:58    阅读次数:180
poj 1961 Period
Description For each prefix of a given string S with N characters (each character has an ASCII code between 97 and 126, inclusive), we want to know wh ...
分类:其他好文   时间:2018-03-13 19:08:59    阅读次数:199
February 2nd, 2018 Week 5th Friday
Reputation takes a life time to build and a second to destroy. 树立名声需要一生的努力,而毁掉它只需要一秒。 To be a smart man, I must know to do something good even though ...
分类:其他好文   时间:2018-03-12 00:00:41    阅读次数:165
zoj 1109 Language of FatMouse(map映照容器的典型应用)
题目连接: acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=1109 题目描述: We all know that FatMouse doesn't speak English. But now he has to be prepared ...
分类:其他好文   时间:2018-03-11 14:34:43    阅读次数:200
HDU - 2444 The Accomodation of Studentsp[二分图判定,匈牙利算法]
There are a group of students. Some of them may know each other, while others don't. For example, A and B know each other, B and C know each other. Bu ...
分类:编程语言   时间:2018-03-11 00:16:22    阅读次数:182
1058. A+B in Hogwarts (20)
If you are a fan of Harry Potter, you would know the world of magic has its own currency system -- as Hagrid explained it to Harry, "Seventeen silver ...
分类:其他好文   时间:2018-03-10 20:30:46    阅读次数:171
L - Large Division (大数, 同余)
Given two integers, a and b, you should check whether a is divisible by b or not. We know that an integer a is divisible by an integer b if and only i ...
分类:其他好文   时间:2018-03-09 20:32:58    阅读次数:187
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