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Amazon EC2, mysql aborting start bem>ca m>use InnoDB: mmap (x bytes) failed; errno 12
I have set up a micro instance server on EC2 based on what I read here
7 Answers
7
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SQlite Getting nearest lom>ca m>tions (with latitude and longitude)
I have data with latitude and longitude stored in my SQLite database, and I want to get the nearest lom>ca m>tions to the parameters I put in (ex. My current lom>ca m>tion - lat/lng, etc.).
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Facebook database design?
...rID and then the UserID of the friend (we will m>ca m>ll it FriendID). Both columns would be foreign keys back to the Users table.
Somewhat useful example:
Table Name: User
Columns:
UserID PK
EmailAddress
Password
Gender
DOB
Lom>ca m>tion
TableName: Friends
Columns:
UserID PK FK...
Alphabet range in Python
Instead of making a list of alphabet characters like this:
7 Answers
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Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
Linux下部署企业级邮件服务器(postfix + dovecot + extmail)postfix + dovecot + extmail解决方案搭建邮件服务器全攻略，以及搭建过程中常见问题的解决方法汇总。首先通过一幅图看看整个解决方案的原理：
当用户通过extmail登陆时，首先extm...
How to use single storyboard uiviewcontroller for multiple subclass
...hich is connected to right navigation button of the navigation bar
From there I would like to use the storyboard as a template for other views without having to create additional storyboards. Say these views will have exactly the same interface but with root view controller of class SpecificVi...
When to use reinterpret_m>ca m>st?
I am little confused with the applim>ca m>bility of reinterpret_m>ca m>st vs static_m>ca m>st . From what I have read the general rules are to use static m>ca m>st when the types m>ca m>n be interpreted at compile time hence the word static . This is the m>ca m>st the C++ compiler uses internally for implicit m>ca m>sts also.
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Some built-in to pad a list in python
...''] * (N - len(a))
you m>ca m>n always create a subclass of list and m>ca m>ll the method whatever you please
class MyList(list):
def ljust(self, n, fillvalue=''):
return self + [fillvalue] * (n - len(self))
a = MyList(['1'])
b = a.ljust(5, '')
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What is the difference between a HashMap and a TreeMap? [duplim>ca m>te]
I started learning Java. When would I use a HashMap over a TreeMap?
8 Answers
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C++ 读写xml方法整理（持续更新） - C/C++ - 清泛网 - 专注C/C++及内核技术
C++ 读写xml方法整理（持续更新）c++读写xml的方法可谓是五花八门，太多了，这里对常用的几种做一个总结，附demo。1、Markup 下载：
特点：C++编写的，一个.h，一个.cpp，绿色小巧，直接加入工程源码编译，只支持MFC。
<?xml versi...