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Backwards migration with Django South

... Your app should have a migrations directory, with files in it named like 0000_initial.py 0001_added_some_fields.py 0002_added_some_more_fields.py 0003_deleted_some_stuff.py Normally, when you run ./manage.py migrate your_app, South runs all new migrations, in order. (It looks at the database tab...
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SQL Server - When to use Clustered vs non-Clustered Index?

...ason) it should be non-nullable and ideally also fixed width - a varchar(250) makes a very poor clustering key Anything else should really be second and third level of importance behind these points .... See some of Kimberly Tripp's (The Queen of Indexing) blog posts on the topic - anything she h...
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In Python, how do I use urllib to see if a website is 404 or 200?

...a=urllib.urlopen('http://www.google.com/asdfsf') >>> a.getcode() 404 >>> a=urllib.urlopen('http://www.google.com/') >>> a.getcode() 200 share | improve this answer ...
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Why covariance and contravariance do not support value type

...ething of type object. – Steve Jul 20 at 14:03  |  show 3 more comments ...
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Can I set null as the default value for a @Value in Spring?

... nosebrainnosebrain 90811 gold badge1414 silver badges1818 bronze badges ...
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How to `go test` all tests in my project?

... answered May 3 '13 at 7:05 zzzzzzzz 67.5k1414 gold badges154154 silver badges127127 bronze badges ...
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Requests — how to tell if you're getting a 404

... 320 Look at the r.status_code attribute: if r.status_code == 404: # A 404 was issued. Demo: ...
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Add hover text without javascript like we hover on a user's reputation

... 508 Use the title attribute, for example: <div title="them's hoverin' words">hover me&...
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Find unmerged Git branches?

... | edited Jan 9 '15 at 20:05 answered Sep 5 '12 at 6:57 A...
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Can I get a patch-compatible output from git-diff?

... answered Jan 6 '11 at 0:50 CB BaileyCB Bailey 610k9090 gold badges596596 silver badges628628 bronze badges ...