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Extending the User model with custom fields in Django

... The least painful and indeed Django-recommended way of doing this is through a OneToOneField(User) property. Extending the existing User model … If you wish to store information related to User, you can use a one-to-one relationship to a mo...
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How can I select multiple columns from a subquery (in SQL Server) that should have one record (selec

...es from the row with the highest value for Foo (rather than the max of Foo and the max of Foo2 - which is NOT the same thing) then the following will usually work better than a subquery: SELECT A.SalesOrderID, A.OrderDate, B1.Foo, B1.Foo2 FROM A LEFT OUTER JOIN B AS B1 ON ...
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What's the proper way to install pip, virtualenv, and distribute for Python?

...4376 , I recommended using ez_setup so that you could then install pip and virtualenv as follows: 15 Answers ...
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What's the meaning of “=>” (an arrow formed from equals & greater than) in JavaScript?

...in all browsers, but they are partially or fully supported in Node v. 4.0+ and in most modern browsers in use as of 2018. (I’ve included a partial list of supporting browsers below). You can read more in the Mozilla documentation on arrow functions. From the Mozilla documentation: An arrow functi...
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NOT IN vs NOT EXISTS

...l need to do more work (even if no NULLs are actually present in the data) and the semantics of NOT IN if NULLs are present are unlikely to be the ones you want anyway. When neither Products.ProductID or [Order Details].ProductID allow NULLs the NOT IN will be treated identically to the following q...
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Converting Secret Key into a String and Vice Versa

I am generating a key and need to store it in DB, so I convert it into a String, but to get back the key from the String. What are the possible ways of accomplishing this? ...
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Script Tag - async & defer

...tributes async & defer for the <script> tag which to my understanding only work in HTML5 browsers. 8 Answers ...
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How to get the second column from command output?

My command's output is something like: 8 Answers 8 ...
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How can you profile a Python script?

Project Euler and other coding contests often have a maximum time to run or people boast of how fast their particular solution runs. With Python, sometimes the approaches are somewhat kludgey - i.e., adding timing code to __main__ . ...
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How does git merge after cherry-pick work?

... Short answer Don't worry, Git will handle it. Long answer Unlike e.g. SVN1, Git does not store commits in delta format, but is snapshot-based2,3. While SVN would naively try to apply each merged commit as a patch (and fail, for the exact reason you described)...