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Best practices for SQL varchar column length [closed]
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No DBMS I know of has any "optimization" that will make a VARCHAR with a 2^n length perform better than one with a max length that is not a power of 2.
I think early SQL Server versions actually treated a VARCHAR with length 255 differently than one with a higher maximum length. I don't kno...
Storing money in a decimal column - what precision and scale?
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If you are looking for a one-size-fits-all, I'd suggest DECIMAL(19, 4) is a popular choice (a quick Google bears this out). I think this originates from the old VBA/Access/Jet Currency data type, being the first fixed point decimal type in the language; Decima...
How do I replace text inside a div element?
I need to set the text within a DIV element dynamically. What is the best, browser safe approach? I have prototypejs and scriptaculous available.
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How do I get the path to the current script with Node.js?
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I found it after looking through the documentation again. What I was looking for were the __filename and __dirname module-level variables.
__filename is the file name of the current module. This is the resolved absolute path of the...
How to fully remove Xcode 4
...this command:
sudo /Developer/Library/uninstall-devtools --mode=all
Edit (1 year later):
If you've downloaded Xcode from the App Store, it's self-contained, as @mediaslave suggests. You can just drag it to the trash or use AppZapper (or a similar utility) to remove the developer tools.
If you...
Scale image to fit a bounding box
... min-width: 100%;
height: auto;
}
To the an element to always have it 100% width and automatically scale the height to the aspect ratio, or the inverse:
.fillheight {
min-height: 100%;
width: auto;
}
to always scale to max height and relative width. To do both, you will need to ...
capturing self strongly in this block is likely to lead to a retain cycle
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The capture of self here is coming in with your implicit property access of self.timerDisp - you can't refer to self or properties on self from within a block that will be strongly retained by self.
You can get around this by creating a weak reference to self bef...
Rule-of-Three becomes Rule-of-Five with C++11?
...erful lecture on rvalue references, I thought that every class would benefit of such a "move constructor", template<class T> MyClass(T&& other) edit and of course a "move assignment operator", template<class T> MyClass& operator=(T&& other) as Philipp points ou...
Can't connect to MySQL server error 111 [closed]
...erver on linux box IP = 192.168.1.100 but when i try to connect to this IP it alway error(111). but use localhost and 127.0.0.1 is OK.
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Best lightweight web server (only static content) for Windows [closed]
I got application server running in Windows – IIS6.0 with Zend Server to execute PHP. I am looking for lightweight static content only web server on this same machine which will relive IIS form handling static content and increase performance.
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