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How can I define a composite primary key in SQL?

...(from that table). If a primary key consists of two or more columns it is called a composite primary key. It is defined as follows: CREATE TABLE voting ( QuestionID NUMERIC, MemberID NUMERIC, PRIMARY KEY (QuestionID, MemberID) ); The pair (QuestionID,MemberID) must then be unique for the ta...
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In Maven 2, how do I know from which dependency comes a transitive dependency?

... This didn't work for me; all I got was errors about unsupported 'legacy' values. Running @David Crow's version (i.e. without the velocity flag) worked fine though. – Vlad Schnakovszki Feb 28 '17 at 13:51 ...
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How do I convert from stringstream to string in C++?

...g string object. 1) Returns a copy of the underlying string as if by calling rdbuf()->str(). 2) Replaces the contents of the underlying string as if by calling rdbuf()->str(new_str)... Notes The copy of the underlying string returned by str is a temporary object that will b...
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How can I change a secret Gist to public?

... @VonC my bad, I wanted to write "(only Secret -> Public)". So basically you can only make public a gist that was previously private. When it is public it will stay public. – GiDo Jul 7 '16 at 16:28 ...
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How can I have linked dependencies in a git repo?

...omes out. However, when somebody clones the repo, it should still work locally and not have broken links. 1 Answer ...
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How to define two angular apps / modules in one page?

...application. To run multiple applications in an HTML document you must manually bootstrap them using angular.bootstrap instead. AngularJS applications cannot be nested within each other. -- http://docs.angularjs.org/api/ng.directive:ngApp See also https://groups.google.com/d/msg/angular/lhbrIG...
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Should I choose ActivePerl or Strawberry Perl for Windows? [duplicate]

I'm totally new to Perl, but I'd like to try it out. I read about two rival distributions available for Windows platform (I guess there's just Perl on other OSes :). ...
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How to find an element by matching exact text of the element in Capybara

...heck out the 'Options Hash' section of the Method: Capybara::Node::Finders#all documentation. PS: text matches are case sensitive. Your example code actually raises an error: find("a", :text => "berlin") # => Capybara::ElementNotFound: # Unable to find css "a" with text "berlin" ...
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Loop through each row of a range in Excel

... Just stumbled upon this and thought I would suggest my solution. I typically like to use the built in functionality of assigning a range to an multi-dim array (I guess it's also the JS Programmer in me). I frequently write code like this: Sub arrayBuilder() myarray = Range("A1:D4") 'unlike mo...
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How to deal with page breaks when printing a large HTML table

...what most people want is running headers and footers, and tables that only allow page breaks between rows, neither of which is implemented in Webkit as of 2015/11/13. – DoctorDestructo Nov 13 '15 at 13:12 ...