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How can I create a unique constraint on my column (SQL Server 2008 R2)?
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But in your case you just need to run the piece of code you already have. It doesn't need to be entered into the expression dialogue at all.
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Can anyone explain python's relative imports?
...ython's relative imports to work. I have created a simple example of where it does not function:
3 Answers
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MongoDB SELECT COUNT GROUP BY
I am playing around with MongoDB trying to figure out how to do a simple
7 Answers
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Correct owner/group/permissions for Apache 2 site files/folders under Mac OS X?
It's hard to find Mac-specific answers to this question on the web, so I'm hoping someone out there can put this one to rest for me? My permissions are screwed up on my sites and I'm not sure how to fix them without just slamming a recursive 777 on everything which is quite obviously incorrect.
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Is cout synchronized/thread-safe?
In general I assume that streams are not synchronized, it is up to the user to do appropriate locking. However, do things like cout get special treatment in the standard library?
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How do I mock a service that returns promise in AngularJS Jasmine unit test?
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I'm not sure why the way you did it doesn't work, but I usually do it with the spyOn function. Something like this:
describe('Testing remote call returning promise', function() {
var myService;
beforeEach(module('app.myService'));
beforeEach(inject(...
Passing a std::array of unknown size to a function
In C++11, how would I go about writing a function (or method) that takes a std::array of known type but unknown size?
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Why shouldn't I use mysql_* functions in PHP?
...as of PHP 7.0 (released December 2015)
This means that as of 31 Dec 2018 it does not exist in any supported version of PHP. If you are using a version of PHP which supports it, you are using a version which doesn't get security problems fixed.
Lacks an OO interface
Doesn't support:
Non-blocking...
How to use PyCharm to debug Scrapy projects
I am working on Scrapy 0.20 with Python 2.7. I found PyCharm has a good Python debugger. I want to test my Scrapy spiders using it. Anyone knows how to do that please?
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Convert a Scala list to a tuple?
How can I convert a list with (say) 3 elements into a tuple of size 3?
13 Answers
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