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Add unique constraint to combination of two columns

I have a table and, somehow, the same person got into my Person table twice. Right now, the primary key is just an autonumber but there are two other fields that exist that I want to force to be unique. ...
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Find unique rows in numpy.array

... +1 This is clear, short and pythonic. Unless speed is a real issue, these type of solutions should take preference over the complex, higher voted answers to this question IMO. – Bill Cheatham Apr 30 '14 at 13:3...
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ASP.NET MS11-100: how can I change the limit on the maximum number of posted form values?

...n web.config. I just tested this on .NET 4.0 with an ASP.NET MVC 2 project and with this setting your code doesn't throw: <appSettings> <add key="aspnet:MaxHttpCollectionKeys" value="1001" /> </appSettings> That should work now (after you have applied the security update) to c...
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Embed git commit hash in a .Net dll

... answered Feb 28 '13 at 19:14 HandcraftsmanHandcraftsman 6,15722 gold badges3636 silver badges3333 bronze badges ...
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Connect different Windows User in SQL Server Management Studio (2005 or later)

...to change the Windows Authentication user (as you could in SQL Server 2000 and older)? 9 Answers ...
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“ValueError: zero length field name in format” error in Python 3.0,3.1,3.2

I'm trying learn Python (3 to be more specific) and I'm getting this error: 3 Answers ...
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Rails layouts per action?

... Cool, thanks. And in case someone wants to do simpler things with one-liner the following is possible. Its easy to read and place in top of the controller. --- layout Proc.new{ ['index', 'new', 'create'].include?(action_name) ? 'some_layou...
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How can I remove all objects but one from the workspace in R?

I have a workspace with lots of objects and I would like to remove all but one. Ideally I would like to avoid having to type rm(obj.1, obj.2... obj.n) . Is it possible to indicate remove all objects but these ones ? ...
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What is a “symbol” in Julia?

...ent than a string is that strings are mutable while symbols are immutable, and symbols are also "interned" – whatever that means. Strings do happen to be mutable in Ruby and Lisp, but they aren't in Julia, and that difference is actually a red herring. The fact that symbols are interned – i.e....
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Why is System.Web.Mvc not listed in Add References?

... problem I had. I chose to use the NuGet install method proscribed below, and I will comment there what I did. – qxotk Feb 9 '16 at 19:30 ...