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Restore a postgres backup file using the command line?
...g on how you created the dump file.
Your first source of reference should be the man page pg_dump(1) as that is what creates the dump itself. It says:
Dumps can be output in script or
archive file formats. Script dumps are
plain-text files containing the SQL
commands required to recon...
Python: Get relative path from comparing two absolute paths
Say, I have two absolute paths. I need to check if the location referring to by one of the paths is a descendant of the other. If true, I need to find out the relative path of the descendant from the ancestor. What's a good way to implement this in Python? Any library that I can benefit from?
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Getting all types that implement an interface
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Mine would be this in c# 3.0 :)
var type = typeof(IMyInterface);
var types = AppDomain.CurrentDomain.GetAssemblies()
.SelectMany(s => s.GetTypes())
.Where(p => type.IsAssignableFrom(p));
Basically, the least amount of i...
MySQL Error 1093 - Can't specify target table for update in FROM clause
I have a table story_category in my database with corrupt entries. The next query returns the corrupt entries:
16 Answers...
What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
...the C++ community(particularly ##c++ on freenode) resent the use of wstrings and wchar_t , and their use in the windows api. What is exactly "wrong" with wchar_t and wstring , and if I want to support internationalization, what are some alternatives to wide characters?
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Python datetime - setting fixed hour and minute after using strptime to get day,month,year
...from datetime import datetime
date = datetime.strptime('26 Sep 2012', '%d %b %Y')
newdate = date.replace(hour=11, minute=59)
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Generate random string/characters in JavaScript
...keid(length) {
var result = '';
var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
var charactersLength = characters.length;
for ( var i = 0; i < length; i++ ) {
result += characters.charAt(Math.floor(Math.random() * character...
Java logical operator short-circuiting
...The & and | operators, when used as logical operators, always evaluate both sides.
There is only one case of short-circuiting for each operator, and they are:
false && ... - it is not necessary to know what the right-hand side is because the result can only be false regardless of the ...
Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...实例
14. awk编程
14.1. 变量
14.2. BEGIN模块
14.3. END模块
14.4. 重定向和管道
14.5. 条件语句
14.6. 循环
14.7. 数组
14.8. awk的内建函数
15. How-to
1. awk简...
How can I use pickle to save a dict?
I have looked through the information that the Python docs give, but I'm still a little confused. Could somebody post sample code that would write a new file then use pickle to dump a dictionary into it?
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