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Does Foreign Key improve query performance?
...Edit
As the link now seems to be dead (kudos to Chris for noticing), following shows the gist of why foreign keys can improve (and hurt) performance.
Can Foreign key improve performance
Foreign key constraint improve performance at the time of reading
data but at the same time it slows down ...
Get all unique values in a JavaScript array (remove duplicates)
... ECMAScript 5 you can use the native filter method of an Array in the following way to get an array with unique values:
function onlyUnique(value, index, self) {
return self.indexOf(value) === index;
}
// usage example:
var a = ['a', 1, 'a', 2, '1'];
var unique = a.filter(onlyUnique);
consol...
Best way to resolve file path too long exception
...
Here's a quote from the link:
Maximum Path Length Limitation In the Windows API (with some exceptions discussed in the following paragraphs), the maximum length
for a path is MAX_PATH, which is defined as 260 characters. A local
path is structured in the following order: drive letter, col...
decompiling DEX into Java sourcecode
...
d2j-dex2jar.sh -f -o output_jar.jar dex_to_decompile.dex
Note 1: In the Windows machines all the .sh scripts are replaced by .bat scripts
Note 2: On linux/mac don't forget about sh or bash. The full command should be:
sh d2j-dex2jar.sh -f -o output_jar.jar apk_to_decompile.apk
Note 3: Also,...
Is it better practice to use String.format over string Concatenation in Java?
...d to be internationalised in any meaningful sense. Otherwise String.format wins out over concatenation in every way.
– workmad3
May 29 '09 at 11:07
4
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MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...s, improvements and suggestions over the 4 years that the grid has been growing, and there is still no end in sight. Most of the fixes have been sent in by readers so I'm trusting that they have done sufficient testing.
Release 2.27 is a minor update of 2.26 for Visual Studio 2010 and includes a co...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...s, improvements and suggestions over the 4 years that the grid has been growing, and there is still no end in sight. Most of the fixes have been sent in by readers so I'm trusting that they have done sufficient testing.
Release 2.27 is a minor update of 2.26 for Visual Studio 2010 and includes a co...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...s, improvements and suggestions over the 4 years that the grid has been growing, and there is still no end in sight. Most of the fixes have been sent in by readers so I'm trusting that they have done sufficient testing.
Release 2.27 is a minor update of 2.26 for Visual Studio 2010 and includes a co...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...s, improvements and suggestions over the 4 years that the grid has been growing, and there is still no end in sight. Most of the fixes have been sent in by readers so I'm trusting that they have done sufficient testing.
Release 2.27 is a minor update of 2.26 for Visual Studio 2010 and includes a co...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...s, improvements and suggestions over the 4 years that the grid has been growing, and there is still no end in sight. Most of the fixes have been sent in by readers so I'm trusting that they have done sufficient testing.
Release 2.27 is a minor update of 2.26 for Visual Studio 2010 and includes a co...