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Unique constraint that allows empty values in MySQL
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edited Oct 31 '12 at 19:00
EricC
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answered Aug 28 ...
How to set up a git project to use an external repo submodule?
...ares them to Subversion's svn:externals mechanism: http://speirs.org/blog/2009/5/11/understanding-git-submodules.html
* As a best practice, you should always place your submodules in their own directory, such as Externals. If you don't, your root project directory can become very cluttered very f...
Is there a naming convention for Django apps
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answered Jun 23 '10 at 13:12
thraxilthraxil
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SQL ON DELETE CASCADE, Which Way Does the Deletion Occur?
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Bhavesh Gangani
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answered Nov 18 '12 at 21:38
John WooJohn Woo
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Insert the carriage return character in vim
...n Unix ( \n newlines). I need to insert the carriage return character ( U+000D aka \r ). When I try to paste it from the clipboard ( "+p ) or type it using Ctrl + Shift + u - 000d , the linefeed is inserted ( U+000A ).
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Django fix Admin plural
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edited Sep 13 '17 at 20:37
Chase
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answered Apr...
How do you receive a url parameter with a spring controller mapping
...wLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\"...
IN vs OR in the SQL WHERE Clause
... your specific data to see which is faster.
I tried both on a MySQL with 1000000 rows. When the column is indexed there is no discernable difference in performance - both are nearly instant. When the column is not indexed I got these results:
SELECT COUNT(*) FROM t_inner WHERE val IN (1000, 2000, ...
Default html form focus without JavaScript
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jpaugh
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answered Nov 12 '10 at 16:05
Jake LucasJake Lucas...
Git Gui: Perpetually getting “This repository currently has approximately 320 loose objects.”
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edited Jun 20 at 9:12
Community♦
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answered Jan 30 '14 at 13:53
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