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Add primary key to existing table
I have an existing table called Persion . In this table I have 5 columns:
10 Answers
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Why would an Enum implement an Interface?
I just found out that Java allows enums to implement an interface. What would be a good use case for that?
16 Answers
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Regex group capture in R with multiple capture-groups
...the match (and one for the whole match):
> s = c("(sometext :: 0.1231313213)", "(moretext :: 0.111222)")
> str_match(s, "\\((.*?) :: (0\\.[0-9]+)\\)")
[,1] [,2] [,3]
[1,] "(sometext :: 0.1231313213)" "sometext" "0.1231313213"
[2,] "(moretext :: 0.1...
C++ Redefinition Header Files (winsock2.h)
... be already included from some other header/implementation file.
Define WIN32_LEAN_AND_MEAN before windows.h or project wide. But it will exclude many other stuff you may need and you should include it by your own.
Define _WINSOCKAPI_ before windows.h or project wide. But when you include WinSock2.h...
Why does ReSharper tell me “implicitly captured closure”?
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
In what order do static/instance initializer blocks in Java run?
Say a project contains several classes, each of which has a static initializer block. In what order do those blocks run? I know that within a class, such blocks are run in the order they appear in the code. I've read that it's the same across classes, but some sample code I wrote disagrees with t...
How to change int into int64?
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Denys SéguretDenys Séguret
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Jquery mouseenter() vs mouseover()
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gilly3gilly3
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Getting indices of True values in a boolean list
I have a piece of my code where I'm supposed to create a switchboard. I want to return a list of all the switches that are on. Here "on" will equal True and "off" equal False . So now I just want to return a list of all the True values and their position. This is all I have but it only return t...
Link to all Visual Studio $ variables
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PedroPedro
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