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Altering a column: null to not null

...tichev's answer seemed good. You can't repeat the alter - it complains (at least in SQL Developer) that the column is already not null. share | improve this answer | follow ...
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Install a Windows service using a Windows command prompt?

...ll remove that comment in order not to mislead anyone. It is available, at least under Windows 10 Professional, but you must enter sc.exe as sc is the service control manager, which is another thing entirely. Documentation is here: docs.microsoft.com/en-us/windows-server/administration/… ...
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Is it Pythonic to use list comprehensions for just side effects?

... comprehensions and their ilk should signal an attempt to use something at least faintly resembling a functional style. Putting things with side effects that break that assumption will cause people to have to read your code more carefully, and I think that's a bad thing. ...
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Remove stubborn underline from link

... @rebus, You can't? Why not? Cause in at least IE7+ and FireFox 4+ you can, but not in Chrome for some reason. Here's the code I got to work in the non-Chrome browsers I tested: .toc-list a > span{text-decoration:none !important;} I think @JMTyler's question ...
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Which is a better way to check if an array has more than one element?

... if (count($arr) >= 2) { // array has at least 2 elements } sizeof() is an alias for count(). Both work with non-arrays too, but they will only return values greater than 1 if the argument is either an array or a Countable object, so you're pretty safe with this. ...
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VSTS 2010 SGEN : error : Could not load file or assembly (Exception from HRESULT: 0x80131515)

...etwork drive that was fully trusted. We have been working like that for at least two years and everything worked perfectly. ...
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Check whether number is even or odd

...ch clearer than n & 1 == 0 which means Zero all the bits but leave the least significant bit unchanged and check if the result is 0. The improved clarity of the first is worth the (probably non-existant) overhead. That is what I meant with premature optimization. If something is slow and you pro...
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How do I prevent site scraping? [closed]

...mages and CSS also true for accessibility readers? CAPTCHA is broken so at least professional services probably not hindered by it. Use of cookies requires notification/consent in the EU. Find a balance between usability for real users and scraper-proofness also balance programming time/complexity v...
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Putting an if-elif-else statement on one line?

... No, it's not possible (at least not with arbitrary statements), nor is it desirable. Fitting everything on one line would most likely violate PEP-8 where it is mandated that lines should not exceed 80 characters in length. It's also against the Zen o...
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Sublime as default editor

...tepad is amazing, however it doesn't work with paths containing spaces (at least for me!), it just opens a tab for each space-separated path element. Any idea on fixing that? – Dan Sep 3 '13 at 7:47 ...