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What are the options for storing hierarchical data in a relational database? [closed]

...rted a new item which was rare in my case but it is really fast. I got the idea from the Joe Celko's book, and the stored procedure and how I came up with it is explained here in DBA SE https://dba.stackexchange.com/q/89051/41481 ...
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Passing parameters to a Bash function

...ible you have some tool installed which causes the issue you mentioned, no idea what could it be. – niieani Aug 2 '18 at 6:23  |  show 1 more ...
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How can I cast int to enum?

... For processing user input, it's probably a good idea to call the overload of Enum.Parse that is allows you to specify that the comparison NOT be case sensitive (i.e. a user typing "red" (lowercase) would crash the above code without this change.) – Br...
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Best way to define private methods for a class in Objective-C

... Defining your private methods in the @implementation block is ideal for most purposes. Clang will see these within the @implementation, regardless of declaration order. There is no need to declare them in a class continuation (aka class extension) or named category. In some cases, you ...
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How do I break out of a loop in Perl?

...ad form, not to mention (blah!)just saying, its "possible" just not a good idea & not what you may think it is – osirisgothra Sep 1 '14 at 15:50 25 ...
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LINQ - Left Join, Group By, and Count

... While the idea behind LINQ syntax is to emulate the SQL syntax, you shouldn't always think of directly translating your SQL code into LINQ. In this particular case, we don't need to do group into since join into is a group join itself....
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Media Queries: How to target desktop, tablet, and mobile?

...bout Ethan Marcotte and how responsive web design evolved from the initial idea. Use semantic markup Further, the simpler and more semantic the DOM structure with nav, header, main, section, footer etc. (avoiding abominations like div class="header" with nested inner div tags) the easier it will be ...
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Why is Java's Iterator not an Iterable?

... An iterator is stateful. The idea is that if you call Iterable.iterator() twice you'll get independent iterators - for most iterables, anyway. That clearly wouldn't be the case in your scenario. For example, I can usually write: public void iterateOver...
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How to change the color of an svg element?

...te(5) hue-rotate(175deg) Upload & Color your SVG - Jsfiddle Took the idea from: https://blog.union.io/code/2017/08/10/img-svg-fill/ share | improve this answer | follow...
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How to manage local vs production settings in Django?

... Using DJANGO_SETTINGS_MODULE env var is the best idea here, thanks Simon. – kibibu May 27 '13 at 4:50 21 ...