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Should each and every table have a primary key?
I'm creating a database table and I don't have a logical primary key assigned to it. So, I'm thinking about leaving it without a primary key, but I'm feeling a bit guilty about it. Should I?
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Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
... array to see if there are any duplicate values. What's the easiest way to do this? I just need to find what the duplicated values are - I don't actually need their indexes or how many times they are duplicated.
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Does svn have a `revert-all` command?
...way all of my changes, and return to the code that is on the repository, I do the following:
4 Answers
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How can I convert uppercase letters to lowercase in Notepad++
...of each word (making the first letter of each word capital). Can notepad++ do that?
– suhao399
May 17 '16 at 9:34
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Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
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It's a solution for Ubuntu (the idea also works for Windows or Mac) I just tried today and it works like a charm.
Material
a cross-over Ethernet cable (the name is fancy but it's just a normal Ethernet cable)
a laptop (ubuntu)
a Raspberry Pi (I have the Pi2)
Prerequisites o...
What is the purpose of the vshost.exe file?
... So is that the reason why when I run Console.Write(System.AppDomain.CurrentDomain.FriendlyName) from the debugger, I get app.vshost.exe and when I run directly from the exe I get output as app.exe
– Milen
Apr 21 '09 at 20:07
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How to provide animation when calling another activity in Android?
...when
Activity A calls B and maximize animation when Activity B calls A. I don't need the animation xml files for this.
4 A...
LEFT OUTER joins in Rails 3
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Doesn't select need a param? Shouldn't this be select('posts.*')?
– Kevin Sylvestre
Mar 26 '15 at 20:08
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Unresolved reference issue in PyCharm
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Manually adding it as you have done is indeed one way of doing this, but there is a simpler method, and that is by simply telling pycharm that you want to add the src folder as a source root, and then adding the sources root to your python path.
This way,...
How to create a GUID/UUID in Python
How do I create a GUID in Python that is platform independent? I hear there is a method using ActivePython on Windows but it's Windows only because it uses COM. Is there a method using plain Python?
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