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PostgreSQL naming conventions
...QL keywords: UPPER CASE
names (identifiers): lower_case_with_underscores
For example:
UPDATE my_table SET name = 5;
This is not written in stone, but the bit about identifiers in lower case is highly recommended, IMO. Postgresql treats identifiers case insensitively when not quoted (it actually...
Convert list to tuple in Python
...: 'tuple' object is not callable
You can recover the original definition for tuple by quitting and restarting your interpreter, or (thanks to @glglgl):
In [6]: del tuple
In [7]: tuple
Out[7]: <type 'tuple'>
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What's the meaning of 'origin' in 'git push origin master'
...t have any special technical meaning, it's just a widely used default name for an original remote repository. You can use foobar instead of origin if you like.
– skuro
Aug 25 '12 at 0:21
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PHP cURL vs file_get_contents
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file_get_contents() is a simple screwdriver. Great for simple GET requests where the header, HTTP request method, timeout, cookiejar, redirects, and other important things do not matter.
fopen() with a stream context or cURL with setopt are powerdrills with every bit and opt...
How to pass an ArrayList to a varargs method parameter?
...w WorldLocation[0]) also works, but you would allocate a zero length array for no reason.)
Here's a complete example:
public static void method(String... strs) {
for (String s : strs)
System.out.println(s);
}
...
List<String> strs = new ArrayList<String>();
strs....
Does anyone know what the new Exit icon is used for when editing storyboards using Xcode 4.5?
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There's a lot of information in the WWDC video "Session 407 - Adopting Storyboards in your App."
Say you have two view controllers linked by a segue. Implement the following exit action on the first view controller:
- (IBAction)done:(UIStoryb...
How can I read a whole file into a string variable
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Then for constructing the final string result, you can use append() to accumulate the data in a single byte slice as you read each file, then convert the accumulated byte slice to the final string result. Alternatively you might ...
What to do with branch after merge
...e to delete the branch) if it thinks you didn't fully merge it yet. If you forcefully delete a branch (with git branch -D) which is not completely merged yet, you have to do some tricks to get the unmerged commits back though (see below).
There are some reasons to keep a branch around though. For e...
How to handle :java.util.concurrent.TimeoutException: android.os.BinderProxy.finalize() timed out af
...ntation.
The root of the problem is at the point a device "Goes to Sleep" for a while - this means that the OS has decided to lower the battery consumption by stopping most User Land processes for a while, and turning Screen off, reducing CPU cycles, etc. The way this is done - is on a Linux system...
'float' vs. 'double' precision
...59__. An implementation that does not define that macro is free not to conform to IEEE-754.
– Stephen Canon
Feb 24 '11 at 0:06
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