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SQL Server dynamic PIVOT query?

...nto temp values ('3/1/2012', 'ABC', 1100.00) DECLARE @cols AS NVARCHAR(MAX), @query AS NVARCHAR(MAX); SET @cols = STUFF((SELECT distinct ',' + QUOTENAME(c.category) FROM temp c FOR XML PATH(''), TYPE ).value('.', 'NVARCHAR(MAX)') ,1,1,'') set @q...
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Are there legitimate uses for JavaScript's “with” statement?

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What are Runtime.getRuntime().totalMemory() and freeMemory()?

I've been wondering what the exact meaning of Runtime.getRuntime().totalMemory() , Runtime.getRuntime().freeMemory() , and Runtime.getRuntime().maxMemory() is. ...
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Difference between 'python setup.py install' and 'pip install'

I have an external package I want to install into my python virtualenv from a tar file. What is the best way to install the package? ...
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What is the use for Task.FromResult in C#

... @StephenCleary hmhm, thanks for explaining that. I had assumed that await would spawn, but I tried it and I see it doesn't. Only Task.Run does. Therefore, x = await Task.FromResult(0); is equivalent to saying x = 0; that's confusing, but good to know! ...
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Why do we need the “event” keyword while defining events?

... This is a thousand times better than MSDN's official one-line explanation: 'The event keyword is used to declare an event in a publisher class.' – cowlinator Apr 13 '16 at 18:17 ...
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UICollectionView inside a UITableViewCell — dynamic height?

...to layout each time you change the model (e.g.: you set a UILabel with a text, then the cell has to be layout again). - (void)bindWithModel:(id)model { // Do whatever you may need to bind with your data and // tell the collection view cell's contentView to resize [self.contentView setN...
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What is “lifting” in Haskell?

...a "lift" is? (I'm completely ignorant about monads, too :) Or can someone explain it to me with simple words? 5 Answers ...
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How does grep run so fast?

...r I used to use substring method in java but now I use GREP for it and it executes in a matter of seconds, it is blazingly faster than java code that I used to write.(according to my experience I might be wrong though) ...
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How do I pass extra arguments to a Python decorator?

...ctual_decorator The outer function will be given any arguments you pass explicitly, and should return the inner function. The inner function will be passed the function to decorate, and return the modified function. Usually you want the decorator to change the function behavior by wrapping it in ...