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Postgres: How to do Composite keys?
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Your compound PRIMARY KEY specification already does what you want. Omit the line that's giving you a syntax error, and omit the redundant CONSTRAINT (already implied), too:
CREATE TABLE tags
(
question_id INTEGER NOT NULL,
tag_id SERIAL N...
Suppress warning “Category is implementing a method which will also be implemented by its primary cl
...leton in your unit test and overide the sharedInstance and the methods you what to control to turn them into dummy objects.
– bandejapaisa
Feb 7 '13 at 16:46
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Status bar and navigation bar appear over my view's bounds in iOS 7
...y setting the bar style to not translucent worked for you.
As you can somewhat see in the first screenshot, there are two UI elements hiding below the navigation bar. (I've enabled wireframes in IB to illustrate this) These elements, a UIButton and a UISegmentedControl both have their "y" origin se...
Should I implement __ne__ in terms of __eq__ in Python?
...eq__() and inverts the result
unless it is NotImplemented.
and in the "what's new" section, we see this behavior has changed:
!= now returns the opposite of ==, unless == returns NotImplemented.
For implementing __ne__, we prefer to use the == operator instead of using the __eq__ me...
How was the first compiler written?
...ter in binary" -- take a step back from being a programmer and think about what the early computers were. High level stuff didn't yet exist -- you thought about everything in the low level because that's all it was. You had hardware that could do basic logic and arithmetic that you manipulate via ma...
Unicode characters in URLs
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What bytes do modern browsers send to to servers in the request line GET /images/logo.png HTTP/1.1? Do they always percent-encode the URL?
– Flimm
Sep 11 '15 at 16:34
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Do I really need to encode '&' as '&'?
... use. HTML5 explicitly allows an unescaped & in this situation, unless what follows & would normally expand to an entity (eg &copy=2 is problematic but &x=2 is fine).
– Matthew Wilson
Aug 16 '10 at 13:26
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Convert Python program to C/C++ code? [closed]
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I know this is an older thread but I wanted to give what I think to be helpful information.
I personally use PyPy which is really easy to install using pip. I interchangeably use Python/PyPy interpreter, you don't need to change your code at all and I've found it to be roughl...
Pass complex parameters to [Theory]
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Any ideas what happened with ClassData? I canõt find it in xUnit2.0, for now, I am using MemberData with static method, which creates new instance of class, and returns that.
– Erti-Chris Eelmaa
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Storing Images in PostgreSQL
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What is the reference for "...the use of "dual solutions" (database+filesystem) is deprecated..."?
– dangel
Feb 10 '19 at 2:13
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