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Extract date (yyyy/mm/dd) from a timestamp in PostgreSQL

...estamp; timestamp --------------------- 2010-01-01 12:00:00 Now we'll cast it to a date: wconrad=# select '2010-01-01 12:00:00'::timestamp::date; date ------------ 2010-01-01 On the other hand you can use date_trunc function. The difference between them is that the latter ...
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Does Notepad++ show all hidden characters?

... It's now View->Show Symbol->Show White Space and TAB (v6.8.8). – bers Feb 11 '16 at 14:57 9 ...
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How to completely remove an issue from GitHub?

... Update Nov 2018: You now can delete your issues! See "Github - remove issues entered in error" At May 2018, original answer: Three 8 years later, and closing issues remains the answer (still no deletion possible). See "The Ghost of Issues P...
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Why did Rails4 drop support for “assets” group in the Gemfile

...ion) like coffee-rails if you are using coffee templates and the fact that now assets are not precompiled on demand in production anymore. (not precompiled on demand in production) Means that if you have that gems in production environment in 3.2.x and forget to precompile, Rails will do exactly wha...
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How do I add a Maven dependency in Eclipse?

I don't know how to use Maven at all. I've been developing for a couple years with Eclipse and haven't yet needed to know about it. However, now I'm looking at some docs that suggest I do the following: ...
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Change IPython/Jupyter notebook working directory

...esn't work please try working from the earlier version. Very conveniently, now "Start in:" can be empty in my tests with 4.1.1 and later. Perhaps they read this entry on SO and liked it, so long upvotes, nobody needs this anymore :) ...
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Find Java classes implementing an interface [duplicate]

...functionality to locate the classes that implemented a given interface. I know the functions were hidden in some non-logical place, but they could be used for other classes as the package name implied. Back then I did not need it, so I forgot about it, but now I do, and I can't seem to find the func...
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Why do some claim that Java's implementation of generics is bad?

...ns. Their design goals were not very well thought out for what was needed. Now we're all stuck with just a boat and we can't climb mountains. – WiegleyJ Dec 12 '17 at 21:11 1 ...
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accepting HTTPS connections with self-signed certificates

... Create the keystore Download the BouncyCastle Provider and store it to a known location. Also ensure that you can invoke the keytool command (usually located under the bin folder of your JRE installation). Now import the obtained certs (don’t import the endpoint cert) into a BouncyCastle formatte...
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Missing file warnings showing up after upgrade to Xcode 4

I recently upgraded to Xcode 4 (which is a great upgrade) but now I'm getting some warnings that I did not get before. I have looked through forums and other SO posts but have not come across how to fix this. ...