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Sql Server equivalent of a COUNTIF aggregate function

... I usually do what Josh recommended, but brainstormed and tested a slightly hokey alternative that I felt like sharing. You can take advantage of the fact that COUNT(ColumnName) doesn't count NULLs, and use something like this: S...
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Is there an expression for an infinite generator?

... for x in iter(int, 1): pass Two-argument iter = zero-argument callable + sentinel value int() always returns 0 Therefore, iter(int, 1) is an infinite iterator. There are obviously a huge number of variations on this particular theme (especially once you add lambda into the mix). One va...
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Initialising an array of fixed size in python [duplicate]

.... yet to be populated with values". The Python docs indicate "None is typically used to represent absence of a value". My example produced such a list of the defined size, in the shortest amount of code. Its the closest thing in idiomatic Python at the time the question was asked. ...
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Spring get current ApplicationContext

...But I avoid creating new ApplicationContextProvider() everytime I need to call the getBean() from the context. What I did was to have static ApplicationContextProvider.getApplicationContext() method. Then, when it is time to need the current app context, I invoke: ApplicationContextProvider appConte...
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bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: lxml. Do you need

...nd followed this tutorial to get Beautiful Soup and lxml, which both installed successfully and work with a separate test file located here . In the Python script that causes this error, I have included this line: from pageCrawler import comparePages And in the pageCrawler file I have inclu...
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View a list of recent documents in Vim

...@Stew link to that question? Those don't seem to work for me. [UPDATE] actually it works for me with :browse oldfiles – sorry! – Aaron Gibralter Feb 20 '14 at 6:11 ...
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Overflow:hidden dots at the end

...an use text-overflow: ellipsis; which according to caniuse is supported by all the major browsers. Here's a demo on jsbin. .cut-text { text-overflow: ellipsis; overflow: hidden; width: 160px; height: 1.2em; white-space: nowrap; } <div class="cut-text"> I like big bu...
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Appending to an object

...Query $.extend(obj1, obj2) would merge 2 objects for you, but you should really be using an array. var alertsObj = { 1: {app:'helloworld','message'}, 2: {app:'helloagain',message:'another message'} }; var alertArr = [ {app:'helloworld','message'}, {app:'helloagain',message:'another...
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How to change the blue highlight color of a UITableViewCell?

...tyleGray, it will be gray. Change the selectedBackgroundView property. Actually what creates the blue gradient is a view. You can create a view and draw what ever you like, and use the view as the background of your table view cells. ...
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How to get the path of the batch script in Windows?

... %~dp0 will be the directory. Here's some documentation on all of the path modifiers. Fun stuff :-) To remove the final backslash, you can use the :n,m substring syntax, like so: SET mypath=%~dp0 echo %mypath:~0,-1% I don't believe there's a way to combine the %0 syntax with the ...