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Is SQL or even TSQL Turing Complete?
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https://web.archive.org/web/20110807062050/http://channel9.msdn.com/forums/TechOff/431432-SQL-Turing-Completeness-question
Is a discussion of this topic. A quote:
SQL as such (i.e. the SQL92 standard) is not turing compl...
How to ignore whitespace in a regular expression subject string?
...ould build the string dynamically of course.
You can see it working here: http://www.rubular.com/r/zzWwvppSpE
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A type for Date only in C# - why is there no Date type?
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Marcos, this is not a good place to ask questions like these. Try http://stackoverflow.com
Short answer is that you need a model to represent a point in time, and DateTime does that, it’s the most useful scenario in practice. The fact that humans use two concepts (date and time) to mark...
How can I create a correlation matrix in R?
...lot
corrplot(M, method = "circle") #plot matrix
More information here: http://cran.r-project.org/web/packages/corrplot/vignettes/corrplot-intro.html
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Simple example of threading in C++
...ck and was instrumental in hammering out the c++0x standard on the topic.
http://www.hpl.hp.com/techreports/2004/HPL-2004-209.html
That said there are several cross-platform thread C++ libraries that work just fine in practice. Intel thread building blocks contains a tbb::thread object that closel...
What kind of virtual machine is BEAM (the Erlang VM)?
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I assume that you've been reading http://en.wikipedia.org/wiki/Virtual_machine - under that terminology, BEAM is a "process virtual machine", just like the JVM.
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How to hide a in a menu with CSS?
...atchYourSearch); // remove options not needed
Here is a working example: http://jsfiddle.net/9CYjy/23/
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How to use a WSDL
...ystem.Web.Services.WebServiceBindingAttribute(Name="MyService", Namespace="http://myservice.com/myservice")]
public partial class MyService : System.Web.Services.Protocols.SoapHttpClientProtocol {
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}
In your client-side, Web-service-consuming code:
instantiate MyService.
set its Url prope...
.rar, .zip files MIME Type
...wer(substr($file, - 4));
// RAR magic number: Rar!\x1A\x07\x00
// http://en.wikipedia.org/wiki/RAR
if ($ext == '.rar' and bin2hex($bytes) == '526172211a0700') {
return TRUE;
}
// ZIP magic number: none, though PK\003\004, PK\005\006 (empty archive),
// or PK\007\00...
Superscript in CSS only?
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http://htmldog.com/articles/superscript/ Essentially:
position: relative;
bottom: 0.5em;
font-size: 0.8em;
Works well in practice, as far as I can tell.
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