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How to copy from CSV file to PostgreSQL table with headers in CSV file?
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I think the problem with this command is, that you have to be the DB superuser. \copy works as normal user, too
– Exocom
Feb 8 '14 at 13:00
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What is the difference between RDF and OWL? [closed]
...rying to grasp the concept of Semantic Web. I am finding it hard to understand what exactly is the difference between RDF and OWL. Is OWL an extension of RDF or these two are totally different technologies?
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How to copy to clipboard in Vim?
...ternal buffer. I want to copy to the OS's clipboard. Is there any such command in Vim or you can only yank stuff within Vim?
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Why is Thread.Sleep so harmful
...it mentioned that Thread.Sleep(); should not be used, but I can't understand why this is so. If Thread.Sleep(); can cause trouble, are there any alternative solutions with the same result that would be safe?
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Get Slightly Lighter and Darker Color from UIColor
...the brightness property itself. All in all:
@implementation UIColor (LightAndDark)
- (UIColor *)lighterColor
{
CGFloat h, s, b, a;
if ([self getHue:&h saturation:&s brightness:&b alpha:&a])
return [UIColor colorWithHue:h
saturation:s
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When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?
...cit conversions between types (such as int to float, or pointer to void*), and it can also call explicit conversion functions (or implicit ones). In many cases, explicitly stating static_cast isn't necessary, but it's important to note that the T(something) syntax is equivalent to (T)something and s...
Sublime Text 2 keyboard shortcut to open file in specified browser (e.g. Chrome)
I do web development and am trying out Sublime Text 2. Is there a keyboard shortcut to open the current file in specified browser (e.g. Chrome)?
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Stretch and scale CSS background
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That would work for Safari 3 (or later), Chrome, Opera 10+, Firefox 3.6+, and Internet Explorer 9 (or later).
For it to work with lower verions of Internet Explorer, try these CSS:
filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='.myBackground.jpg', sizingMethod='scale');
-ms-fi...
What is the best place for storing uploaded images, SQL database or disk file system? [closed]
...o upload images onto the server. I expect about 20 images per day all jpeg and probably not edited/resized. (This is another question, how to resize the images on the server side before storing. Maybe someone can please drop a .NET resource for that in the comment or so).
I wonder now what the best...
How to check whether a string is Base64 encoded or not
...z0-9+/]{2}==)?$
In base64 encoding, the character set is [A-Z, a-z, 0-9, and + /]. If the rest length is less than 4, the string is padded with '=' characters.
^([A-Za-z0-9+/]{4})* means the string starts with 0 or more base64 groups.
([A-Za-z0-9+/]{4}|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{2}==)$ mean...