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What are the use cases for selecting CHAR over VARCHAR in SQL?

...VARCHAR(6), VARCHAR(100), or VARCHAR(MAX) uses the same amount of storage. Read more about the differences when using VARCHAR(MAX). You declare a maximum size in VARCHAR to limit how much is stored. In the comments AlwaysLearning pointed out that the Microsoft Transact-SQL docs seem to say the oppos...
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What is the function __construct used for?

I have been noticing __construct a lot with classes. I did a little reading and surfing the web, but I couldn't find an explanation I could understand. I am just beginning with OOP. ...
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Batch file to copy files from one folder to another folder

...slower, but for the paranoid. /h - copy system and hidden files. /k - copy read-only attributes along with files. otherwise, all files become read-write. /x - if you care about permissions, you might want /o or /x. /y - don't prompt before overwriting existing files. /z - if you think the copy might...
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Android Bitmap to Base64 String

... should this be done in asynctask? or is it fine to do this in the main thread? – n3wb Mar 12 '14 at 16:17  |  show 7 more comments ...
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What is C# analog of C++ std::pair?

...r than new Tuple<string, int>("Hello", 4). (By the way, .NET4.0 is already here since 2010.) – Jeppe Stig Nielsen Aug 15 '12 at 18:46 4 ...
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How does !!~ (not not tilde/bang bang tilde) alter the result of a 'contains/included' Array method

If you read the comments at the jQuery inArray page here , there's an interesting declaration: 13 Answers ...
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HTML inside Twitter Bootstrap popover

...levant parts of the code is below: HTML: <!-- Note: Popover content is read from "data-content" and "title" tags. --> <a tabindex="0" class="btn btn-lg btn-primary" role="button" data-html="true" data-toggle="popover" data-trigger="focus" title="<b>Example popo...
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How to get a list of all files that changed between two Git commits?

...ed --exclude-standard To get the last modified date for each file: while read filename; do echo -n "$(stat -c%y -- $filename 2> /dev/null) "; echo $filename; done Although ruvim suggests in the comments: xargs -0 stat -c '%y %n' -- To sort them from oldest to more recent: sort An ...
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configure: error: C compiler cannot create executables

... If you are reading this answer, this is definitely something you should do, but be aware that it will not solve your problem with other packages you are trying to build. So first install the command line tools then see the answer below ...
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What is the actual use of Class.forName(“oracle.jdbc.driver.OracleDriver”) while connecting to a dat

...oad any drivers prior to JDBC 4.0 with the method Class.forName.) Further reading (read: questions this is a dup of) What purpose does Class.forName() serve if you don't use the return value? How does Class.forName() work? What does 'Class.forName("org.sqlite.JDBC");' do? What is the purpose of 'C...